{"id":2244,"date":"2017-12-19T07:20:20","date_gmt":"2017-12-19T07:20:20","guid":{"rendered":"http:\/\/docs.creativegigs.net\/docs\/faster-documentation\/theme-settings\/footer-settings\/"},"modified":"2025-12-10T11:54:40","modified_gmt":"2025-12-10T11:54:40","slug":"footer-settings","status":"publish","type":"docs","link":"https:\/\/sahelib.atatec-design.com\/index.php\/docs\/rogan-documentation\/theme-settings\/footer-settings\/","title":{"rendered":"L\u2019Institut de recherche biom\u00e9dicale des arm\u00e9es (IRBA) et l\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es\u00a0"},"content":{"rendered":"<h2 class=\"section-title u-h4 u-margin-l-top u-margin-xs-bottom\">R\u00e9sum\u00e9<\/h2>\n<div id=\"abst0005\">\n<div id=\"spar0005\" class=\"u-margin-s-bottom\">L\u2019Institut de recherche biom\u00e9dicale des arm\u00e9es (IRBA), largement impliqu\u00e9 dans la recherche sur le SARS-CoV-2, a cofond\u00e9 le r\u00e9seau sentinelle Ob\u00e9pine charg\u00e9 de d\u00e9tecter, de qualifier et de quantifier le g\u00e9nome du virus dans les eaux us\u00e9es en France. Durant cette pand\u00e9mie, l\u2019\u00e9pid\u00e9miologie bas\u00e9e sur les eaux us\u00e9es s\u2019est av\u00e9r\u00e9e \u00eatre un outil de sant\u00e9 publique de premier ordre pour \u00e9valuer la dynamique virale dans les populations et l\u2019environnement. Ob\u00e9pine a \u00e9galement men\u00e9 des travaux de recherche ayant d\u00e9montr\u00e9 la faible infectiosit\u00e9 des mati\u00e8res f\u00e9cales et des eaux us\u00e9es et permis de d\u00e9tecter en avance de phase les vagues \u00e9pid\u00e9miques li\u00e9es aux nouveaux variants. L\u2019IRBA a adapt\u00e9 cet outil performant au suivi des infections virales sur le porte-avions Charles-de-Gaulle \u00e0 la suite d\u2019une premi\u00e8re \u00e9pid\u00e9mie \u00e0 bord en 2020. Cet outil de surveillance a facilit\u00e9 la gestion du risque de contamination virale \u00e0 bord lors des escales et des entr\u00e9es de personnels. La lutte contre la circulation virale permettant le maintien de la capacit\u00e9 op\u00e9rationnelle repose sur un ensemble de mesures\u00a0: vaccination du personnel, suivi des eaux noires par PCR pour la d\u00e9tection d\u2019une circulation virale, capacit\u00e9 de diagnostic par PCR des sujets symptomatiques ou contacts pour l\u2019identification et le suivi des cas. Cet outil innovant peut \u00eatre r\u00e9orient\u00e9 vers la recherche d\u2019autres agents pathog\u00e8nes dans les eaux noires, voire, \u00e0 terme, permettre d\u2019assurer une surveillance sanitaire des militaires, en mer ou \u00e0 terre, en m\u00e9tropole ou sur une base outre-mer.<\/div>\n<\/div>\n<div><\/div>\n<div>\n<h2 class=\"section-title u-h4 u-margin-l-top u-margin-xs-bottom\">Mots cl\u00e9s<\/h2>\n<div id=\"kw0045\" class=\"keyword\"><em>\u00c9pid\u00e9miologie des eaux us\u00e9es, COVID-19, SARS-CoV-2, One Health, Marine, Eaux us\u00e9es, Eaux noires<\/em><\/div>\n<\/div>\n<div><\/div>\n<div>\n<h2 id=\"sect0025\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">Introduction<\/h2>\n<div id=\"par0005\" class=\"u-margin-s-bottom\">Depuis l\u2019\u00e9mergence du virus SARS-CoV-2 (<em>severe acute respiratory syndrome coronavirus 2<\/em>), l\u2019Institut de recherche biom\u00e9dicale des arm\u00e9es (IRBA), au sein du service de sant\u00e9 des arm\u00e9es (SSA), est impliqu\u00e9, \u00e0 plusieurs niveaux, dans la gestion de crise au service des forces arm\u00e9es\u00a0: mise au point de tests diagnostiques innovants, mise en place de mesures de bios\u00e9curit\u00e9, suivi de cohortes pour mieux conna\u00eetre les d\u00e9terminants de l\u2019infection, soutien des h\u00f4pitaux et activit\u00e9s de recherche cibl\u00e9e sur la ma\u00eetrise de l\u2019\u00e9pid\u00e9mie en France comme au sein des forces arm\u00e9es. L\u2019IRBA a ainsi particip\u00e9 \u00e0 la cr\u00e9ation d\u2019un r\u00e9seau national sentinelle pour le suivi de la dynamique virale dans les eaux us\u00e9es. Il a ensuite adapt\u00e9 ce concept au contexte op\u00e9rationnel, aboutissant entre autres \u00e0 une preuve de concept exp\u00e9rimentale sur le porte-avions Charles-de-Gaulle et participant de fait \u00e0 la r\u00e9silience des forces arm\u00e9es.<\/div>\n<\/div>\n<div><\/div>\n<div>\n<div id=\"body\" class=\"Body u-font-serif\">\n<div>\n<section id=\"sec0010\">\n<h2 id=\"sect0030\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">L\u2019IRBA, co-fondateur du r\u00e9seau OB\u00c9PINE, r\u00e9seau sentinelle de l\u2019\u00e9pid\u00e9mie<\/h2>\n<section id=\"sec0015\">\n<h3 id=\"sect0035\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">Premi\u00e8res \u00e9tudes en France sur l\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es appliqu\u00e9e au COVID-19<\/h3>\n<div id=\"par0010\" class=\"u-margin-s-bottom\">D\u00e8s la fin de l\u2019ann\u00e9e 2019, plusieurs \u00e9quipes de recherche n\u00e9erlandaises d\u00e9montrent la pr\u00e9sence du virus dans les stations de traitement des eaux us\u00e9es (STEU) pendant la vague \u00e9pid\u00e9mique de SARS-CoV-2. Ces approches pr\u00e9coces qualitatives ou semi-qualitatives, comme celle d\u00e9velopp\u00e9e plus tard par les marins-pompiers de Marseille \u00e0 l\u2019\u00e9t\u00e9 2020, ne permettent cependant pas de caract\u00e9riser la dynamique de l\u2019\u00e9pid\u00e9mie\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0150\" name=\"bbib0150\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0150\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[1]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0155\" name=\"bbib0155\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0155\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[2]<\/span><\/span><\/a>.<\/div>\n<div id=\"par0015\" class=\"u-margin-s-bottom\">L\u2019IRBA est l\u2019un des membres fondateurs du r\u00e9seau national sentinelle Ob\u00e9pine cr\u00e9\u00e9 en mars 2020. Ce r\u00e9seau est un consortium de recherche qui r\u00e9unit, outre l\u2019IRBA, Sorbonne universit\u00e9 (virologie, math\u00e9matiques, hydrologie), l\u2019\u00e9quipe recherche et d\u00e9veloppement d\u2019Eau de Paris (virologie environnementale), le LCPME (Laboratoire de chimie physique et microbiologie pour les mat\u00e9riaux et l\u2019environnement), l\u2019Universit\u00e9 de Lorraine, l\u2019IFREMER (Institut fran\u00e7ais de recherche pour l\u2019exploitation de la mer) et l\u2019Universit\u00e9 de Clermont-Auvergne.<\/div>\n<div id=\"par0020\" class=\"u-margin-s-bottom\">Le r\u00e9seau Ob\u00e9pine, dont certains membres avaient d\u00e9j\u00e0 exp\u00e9riment\u00e9 le concept d\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es sur des virus ent\u00e9riques en 2015\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0160\" name=\"bbib0160\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0160\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[3]<\/span><\/span><\/a>, a ainsi souhait\u00e9 tr\u00e8s rapidement quantifier le SARS-CoV-2\u00a0dans les eaux us\u00e9es, construire des mod\u00e8les \u00e9pid\u00e9miologiques susceptibles d\u2019\u00e9tudier des tendances \u00e9pid\u00e9miques et mettre en relation les quantit\u00e9s de virus recueillies dans les eaux us\u00e9es avec le nombre de porteurs du virus\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0165\" name=\"bbib0165\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0165\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[4]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0170\" name=\"bbib0170\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0170\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[5]<\/span><\/span><\/a>. Les premi\u00e8res analyses du r\u00e9seau ont\u00a0\u00e9t\u00e9\u00a0r\u00e9alis\u00e9es en mars 2020. Cette strat\u00e9gie visait \u00e0 mesurer l\u2019impact des mesures sanitaires de contr\u00f4le (confinement, couvre-feu et vaccination) et identifier toute r\u00e9surgence de l\u2019\u00e9pid\u00e9mie \u00e0 l\u2019\u00e9chelle d\u2019un territoire. En effet, le virus SARS-CoV-2\u00a0est \u00e9limin\u00e9 dans les selles chez 40\u00a0\u00e0 60\u00a0% des malades et des patients asymptomatiques ou paucisymptomatiques avec des charges virales souvent \u00e9lev\u00e9es et des dur\u00e9es d\u2019excr\u00e9tion qui peuvent d\u00e9passer 4\u00a0\u00e0 6\u00a0semaines, donc fr\u00e9quemment au-del\u00e0 des dur\u00e9es de d\u00e9tection du virus dans les voies respiratoires sup\u00e9rieures\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0175\" name=\"bbib0175\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0175\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[6]<\/span><\/span><\/a>.<\/div>\n<div id=\"par0025\" class=\"u-margin-s-bottom\">Plusieurs mois ont \u00e9t\u00e9 n\u00e9cessaires pour valider les protocoles d\u2019analyse dans les eaux us\u00e9es et faire monter en comp\u00e9tence les partenaires du projet (collectivit\u00e9s, laboratoires, op\u00e9rateurs). Les m\u00e9thodes de pr\u00e9l\u00e8vement et d\u2019extraction de l\u2019ARN viral n\u00e9cessitent en effet une longue mise au point et une capacit\u00e9 de reproductibilit\u00e9 difficile \u00e0 acqu\u00e9rir.<\/div>\n<div id=\"par0030\" class=\"u-margin-s-bottom\">Par ailleurs, la m\u00e9thode \u00e9tant bas\u00e9e initialement sur l\u2019\u00e9valuation de la concentration virale par litre d\u2019eau us\u00e9e par RT-PCR quantitative (reverse transcription\u2013quantitative polymerase chain reaction ou RT-qPCR), le passage d\u2019une quantification virale \u00e0 un indicateur de suivi de l\u2019\u00e9pid\u00e9mie a n\u00e9cessit\u00e9 le d\u00e9veloppement rapide de mod\u00e8les math\u00e9matiques statistiques complexes\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0180\" name=\"bbib0180\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0180\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[7]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0185\" name=\"bbib0185\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0185\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[8]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0190\" name=\"bbib0190\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[9]<\/span><\/span><\/a>\u00a0tenant compte des variations de d\u00e9bit des stations d\u2019\u00e9puration, des donn\u00e9es physico-chimiques des eaux us\u00e9es, des donn\u00e9es de pluviom\u00e9trie, etc.\u00a0<em>In fine<\/em>, la m\u00e9thode d\u2019analyse et d\u2019exploitation des r\u00e9sultats a \u00e9t\u00e9 consid\u00e9r\u00e9e comme fiable d\u00e8s la fin octobre 2020. Les r\u00e9sultats d\u2019Ob\u00e9pine sont accessibles au public depuis le 25\u00a0janvier 2021\u00a0via un site internet d\u00e9di\u00e9.<\/div>\n<div id=\"par0035\" class=\"u-margin-s-bottom\">Cette d\u00e9marche innovante, soutenue par trois acad\u00e9mies (Acad\u00e9mie des technologies, Acad\u00e9mie des sciences et Acad\u00e9mie nationale de m\u00e9decine) a \u00e9t\u00e9 financ\u00e9e \u00e0 hauteur de 3,5\u00a0millions d\u2019euros initialement par le minist\u00e8re de l\u2019enseignement et de la recherche (MESRI) pour \u00e9tablir la preuve de concept et initier une des premi\u00e8res surveillances nationales mondiales, et plus r\u00e9cemment par le minist\u00e8re des solidarit\u00e9s et de la sant\u00e9 dans le cadre du suivi op\u00e9rationnel, dans l\u2019attente d\u2019un dispositif de suivi institutionnel (SUM\u2019EAU\u00a0: surveillance microbiologique des eaux us\u00e9es) \u00e0 ce jour encore en gestation.<\/div>\n<\/section>\n<section id=\"sec0020\">\n<h3 id=\"sect0040\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">\u00c9pid\u00e9miologie des eaux us\u00e9es\u00a0: un champ de recherche innovant et prometteur<\/h3>\n<div id=\"par0040\" class=\"u-margin-s-bottom\">Le r\u00e9seau Ob\u00e9pine et l\u2019IRBA ont pu mettre en \u00e9vidence dans la mise en place d\u2019un r\u00e9seau national de surveillance, les points saillants de cette exp\u00e9rience innovante\u00a0: l\u2019int\u00e9r\u00eat du travail interdisciplinaire, la n\u00e9cessit\u00e9 d\u2019actions de recherche pour am\u00e9liorer la surveillance de routine et le co\u00fbt relativement faible de l\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es.<\/div>\n<section id=\"sec0025\">\n<h4 id=\"sect0045\" class=\"u-margin-m-top u-margin-xs-bottom\">La surveillance \u00e9pid\u00e9miologique\u00a0: un outil interdisciplinaire et de collaboration<\/h4>\n<div id=\"par0045\" class=\"u-margin-s-bottom\">Bas\u00e9 sur un r\u00e9seau de 200\u00a0STEU (stations de traitement des eaux us\u00e9es), mais incluant \u00e9galement une surveillance cibl\u00e9e des collecteurs d\u2019eaux us\u00e9es parisiens, Ob\u00e9pine tire son efficacit\u00e9 d\u2019une approche multidisciplinaire qui a r\u00e9uni des sp\u00e9cialistes de la virologie m\u00e9dicale et environnementale, des microbiologistes, des math\u00e9maticiens et des hydrologues voulant r\u00e9aliser en m\u00eame temps une recherche acad\u00e9mique de haut niveau et proposer de nouveaux outils d\u2019aide \u00e0 la d\u00e9cision aux autorit\u00e9s sanitaires.<\/div>\n<div id=\"par0050\" class=\"u-margin-s-bottom\">Des initiatives similaires ont \u00e9t\u00e9 mises en place dans le monde entier, d\u00e9montrant, de mani\u00e8re in\u00e9dite \u00e0 cette \u00e9chelle, le potentiel de l\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es dans la pr\u00e9vention et la surveillance d\u2019une \u00e9pid\u00e9mie\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0195\" name=\"bbib0195\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0195\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[10]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0200\" name=\"bbib0200\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0200\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[11]<\/span><\/span><\/a>.<\/div>\n<div id=\"par0055\" class=\"u-margin-s-bottom\">La constitution d\u2019un r\u00e9seau de laboratoires experts reste \u00e9galement un objectif important dans la mise en place d\u2019une collaboration efficace et pour produire des r\u00e9sultats pertinents, interpr\u00e9tables et reproductibles. En l\u2019absence de norme internationale, les analyses ont \u00e9t\u00e9 r\u00e9alis\u00e9es selon des protocoles de recherche dont l\u2019ex\u00e9cution \u2014\u00a0parfois complexe\u00a0\u2014 a \u00e9t\u00e9 valid\u00e9e par des tests interlaboratoires organis\u00e9s avec l\u2019objectif de produire un indicateur pertinent. Cela a conduit \u00e0 \u00eatre vigilant \u00e0 la fois en termes de limite de d\u00e9tection et de qualit\u00e9 de la quantification. Des exp\u00e9riences identiques, conduites notamment aux Pays-Bas, ont \u00e9t\u00e9 facilit\u00e9es par la centralisation de la gestion du projet, un seul laboratoire expert \u00e9tant officiellement capable de d\u00e9velopper une recherche fondamentale et de mettre en place une strat\u00e9gie de surveillance \u00e0 l\u2019\u00e9chelle nationale. En France, le projet a sans doute \u00e9t\u00e9 rendu plus complexe par l\u2019existence de plusieurs laboratoires experts et l\u2019absence d\u2019un comit\u00e9 de pilotage capable de r\u00e9unir des acteurs aux comp\u00e9tences diff\u00e9rentes autour d\u2019un sujet commun relevant de la sant\u00e9 globale, et aussi par le caract\u00e8re transversal de l\u2019approche, qui rel\u00e8ve de plusieurs p\u00e9rim\u00e8tres minist\u00e9riels (MESRI, minist\u00e8re de la Transition \u00e9cologique, minist\u00e8re des Solidarit\u00e9s et de la Sant\u00e9).<\/div>\n<\/section>\n<section id=\"sec0030\">\n<h4 id=\"sect0050\" class=\"u-margin-m-top u-margin-xs-bottom\">La surveillance de routine doit s\u2019appuyer sur des actions de recherche dans une approche \u00ab\u00a0Une seule sant\u00e9\u00a0\u00bb<\/h4>\n<div id=\"par0060\" class=\"u-margin-s-bottom\">Ob\u00e9pine n\u2019est pas seulement un r\u00e9seau sentinelle de routine. En effet, plusieurs \u00e9quipes qui le composent ont abord\u00e9 de nombreuses questions fondamentales et appliqu\u00e9es concernant, entre autres, l\u2019int\u00e9grit\u00e9 des particules virales dans les eaux us\u00e9es\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0205\" name=\"bbib0205\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[12]<\/span><\/span><\/a>, l\u2019efficacit\u00e9 des traitements des boues\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0210\" name=\"bbib0210\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0210\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[13]<\/span><\/span><\/a>, la d\u00e9tection dans les coquillages\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0215\" name=\"bbib0215\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0215\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[14]<\/span><\/span><\/a>, la bioaccumulation du virus dans les coquillages\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0220\" name=\"bbib0220\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0220\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[15]<\/span><\/span><\/a>\u00a0ou l\u2019impact des traitements sur la pr\u00e9sence du virus dans les eaux us\u00e9es et les boues\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0225\" name=\"bbib0225\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0225\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[16]<\/span><\/span><\/a>\u00a0mais aussi la faible infectiosit\u00e9 du virus dans les selles (article soumis \u00e0 publication).<\/div>\n<div id=\"par0065\" class=\"u-margin-s-bottom\">Les eaux us\u00e9es permettent de surveiller les formes classiques du virus, qui ont pr\u00e9domin\u00e9 en France jusqu\u2019en d\u00e9cembre 2020, mais aussi certains variants. Ainsi, la surveillance r\u00e9alis\u00e9e en \u00cele-de-France montre que le variant alpha, caract\u00e9ris\u00e9 par des mutations sp\u00e9cifiques comme del69-70, a \u00e9t\u00e9 identifi\u00e9 d\u00e8s le 4\u00a0janvier 2021\u00a0dans les STEP parisiennes, et a progressivement supplant\u00e9 les formes historiques du virus. La quantification relative de la d\u00e9l\u00e9tion del69-70\u00a0a une tr\u00e8s bonne relation avec les donn\u00e9es humaines fournies par les h\u00f4pitaux parisiens, relation valable aussi depuis peu pour le variant Omicron\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0190\" name=\"bbib0190\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[9]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0205\" name=\"bbib0205\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[12]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0230\" name=\"bbib0230\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0230\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[17]<\/span><\/span><\/a>. Cette preuve de concept a d\u00e9montr\u00e9 la faisabilit\u00e9 de mise en \u0153uvre de ce type de surveillance sp\u00e9cifique des mutations, compl\u00e9mentaire des m\u00e9thodes de s\u00e9quen\u00e7age. Un examen sp\u00e9cifique des variants par RT-qPCR ou PCR digitale permet ainsi une mesure rapide et peu co\u00fbteuse de la proportion des mutations, qui pourrait \u00eatre utilis\u00e9e comme un \u00ab\u00a0proxy\u00a0\u00bb pour le suivi de la dynamique des variants [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib286\" name=\"bbib286\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib286\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">18<\/span><\/span><\/a>].<\/div>\n<div id=\"par0070\" class=\"u-margin-s-bottom\">L\u2019\u00e9mergence de variants viraux de contagiosit\u00e9 accrue, susceptibles d\u2019\u00e9chapper \u00e0 la r\u00e9ponse immunitaire et\/ou plus virulents pose de nouveaux d\u00e9fis\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0230\" name=\"bbib0230\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0230\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[17]<\/span><\/span><\/a>. La n\u00e9cessit\u00e9 de suivre les variants viraux dans les eaux us\u00e9es dans le cadre d\u2019un plan de surveillance g\u00e9n\u00e9ralis\u00e9 s\u2019est rapidement impos\u00e9e au moyen de m\u00e9thodes compl\u00e9mentaires, recherche cibl\u00e9e de mutations par RT-qPCR ou s\u00e9quen\u00e7age. En outre, le suivi des variants dans les eaux us\u00e9es ouvre des perspectives int\u00e9ressantes en termes de recherche fondamentale, les approches g\u00e9n\u00e9tiques et m\u00e9tag\u00e9nomiques pourraient ainsi \u00eatre utilis\u00e9es pour d\u2019autres microorganismes.<\/div>\n<div id=\"par0075\" class=\"u-margin-s-bottom\">La r\u00e9cente \u00e9pid\u00e9mie qui a touch\u00e9 des \u00e9levages de visons aux Pays-Bas et au Danemark [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0235\" name=\"bbib0235\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0235\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[19]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0240\" name=\"bbib0240\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0240\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[20]<\/span><\/span><\/a>] et l\u2019infection des cerfs de Virginie [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0245\" name=\"bbib0245\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0245\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[21]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0250\" name=\"bbib0250\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0250\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[22]<\/span><\/span><\/a>] rappelle que le SARS-CoV-2, d\u2019origine animale, pourrait bien trouver de nouveaux h\u00f4tes [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0255\" name=\"bbib0255\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0255\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">23<\/span><\/span><\/a>]. La surveillance de l\u2019\u00e9mergence du SARS-CoV-2\u00a0dans les esp\u00e8ces animales, et particuli\u00e8rement celles vivant \u00e0 proximit\u00e9 des hommes (animaux de compagnie, b\u00e9tail, rongeurs urbains), est essentielle pour \u00e9viter que le virus ne s\u2019implante dans de nouveaux r\u00e9servoirs \u2014\u00a0ce qui rendrait le contr\u00f4le tr\u00e8s difficile\u00a0\u2014 ou ne s\u00e9lectionne de nouveaux variants, comme cela a \u00e9t\u00e9 observ\u00e9 chez le vison d\u2019\u00e9levage. Un syst\u00e8me de surveillance des eaux us\u00e9es, des effluents agricoles, ou l\u2019analyse des f\u00e8ces d\u2019animaux domestiques ou sauvages peut enrichir un syst\u00e8me int\u00e9gr\u00e9 de surveillance de l\u2019\u00e9pid\u00e9mie. \u00c0 ce titre, Ob\u00e9pine est actuellement impliqu\u00e9 dans un projet de recherche port\u00e9 par l\u2019ANRS-Maladies infectieuses \u00e9mergentes visant \u00e0 \u00e9valuer le risque de franchissement de la barri\u00e8re d\u2019esp\u00e8ce entre les rongeurs urbains et l\u2019Homme. Plus largement, cette strat\u00e9gie pourrait \u00e9galement \u00eatre une r\u00e9ponse aux besoins sanitaires des pays durement touch\u00e9s par l\u2019\u00e9pid\u00e9mie ne disposant pas des moyens humains, techniques et \u00e9conomiques pour surveiller les \u00e9pid\u00e9mies, voire les \u00e9pizooties, par des campagnes massives de tests individuels co\u00fbteux sur l\u2019homme ou l\u2019animal.<\/div>\n<\/section>\n<section id=\"sec0035\">\n<h4 id=\"sect0055\" class=\"u-margin-m-top u-margin-xs-bottom\">L\u2019\u00e9pid\u00e9miologie des eaux us\u00e9es est un outil de surveillance des \u00e9pid\u00e9mies au co\u00fbt limit\u00e9<\/h4>\n<div id=\"par0080\" class=\"u-margin-s-bottom\">Ob\u00e9pine et la plupart des projets similaires europ\u00e9ens et mondiaux, proposent une approche \u00e9pid\u00e9miologique peu co\u00fbteuse, et donc particuli\u00e8rement bien adapt\u00e9e aux pays \u00e0 faibles ressources \u00e9conomiques. La surveillance \u00e9pid\u00e9miologique propos\u00e9e par Ob\u00e9pine co\u00fbte environ 75\u00a0000\u00a0euros pour 200\u00a0stations par semaine et couvre environ 40\u00a0% de la population fran\u00e7aise. M\u00eame si la finalit\u00e9 des tests individuels est diff\u00e9rente, il n\u2019est pas inutile de rappeler que le rapport b\u00e9n\u00e9fice\/co\u00fbt \u00e9pid\u00e9miologique est bien plus \u00e9lev\u00e9\u00a0: certaines semaines, plus de 200\u00a0millions d\u2019euros ont \u00e9t\u00e9 d\u00e9pens\u00e9s pour surveiller 5\u00a0% de la population fran\u00e7aise. \u00c0 l\u2019heure o\u00f9 le co\u00fbt des tests individuels est mis en avant, et estim\u00e9 \u00e0 plus de 6\u00a0milliards d\u2019euros en 2021, le suivi des eaux us\u00e9es pourrait donc s\u2019av\u00e9rer \u00eatre une strat\u00e9gie alternative de choix pour maintenir une surveillance \u00e9pid\u00e9miologique de qualit\u00e9 \u00e0 un co\u00fbt supportable. Des travaux sont en cours afin d\u2019adapter le r\u00e9seau actuel, bas\u00e9 sur le suivi des pathog\u00e8nes dans les STEU, \u00e0 d\u2019autres m\u00e9thodes d\u2019\u00e9chantillonnage<em>in natura<\/em>, notamment pour mettre en place ce type d\u2019approche dans des pays dont les r\u00e9seaux d\u2019assainissement sont insuffisamment d\u00e9velopp\u00e9s.<\/div>\n<\/section>\n<\/section>\n<\/section>\n<section id=\"sec0040\">\n<h2 id=\"sect0060\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">Un projet de surveillance appliqu\u00e9 dans un cadre militaire op\u00e9rationnel\u00a0: le projet OB\u00c9PINE+<\/h2>\n<div id=\"par0085\" class=\"u-margin-s-bottom\">Les navires de la marine et les bateaux de croisi\u00e8re forment un environnement particulier favorisant la diffusion du COVID-19\u00a0par la vie confin\u00e9e \u00e0 bord et la climatisation syst\u00e9matis\u00e9e, comme l\u2019ont montr\u00e9 plusieurs \u00e9pid\u00e9mies majeures r\u00e9centes [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0260\" name=\"bbib0260\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0260\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[24]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0265\" name=\"bbib0265\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0265\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[25]<\/span><\/span><\/a>]. Apr\u00e8s l\u2019\u00e9pid\u00e9mie de SARS-CoV-2\u00a0survenue en 2020\u00a0\u00e0 bord du porte-avions nucl\u00e9aire Charles-de-Gaulle (PAN CDG) [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0270\" name=\"bbib0270\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0270\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">26<\/span><\/span><\/a>], son d\u00e9part en f\u00e9vrier 2021\u00a0pour une mission de longue dur\u00e9e posait le probl\u00e8me du contr\u00f4le sanitaire au regard du risque d\u2019une nouvelle \u00e9pid\u00e9mie en cours de mission.<\/div>\n<section id=\"sec0045\">\n<h3 id=\"sect0065\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">Strat\u00e9gie innovante de pr\u00e9vention des infections \u00e0 SARS-CoV-2\u00a0sur les b\u00e2timents de la Marine nationale<\/h3>\n<div id=\"par0090\" class=\"u-margin-s-bottom\">Pour \u00eatre efficace, la lutte contre un virus \u00e0 forte dynamique de propagation en milieu confin\u00e9 n\u00e9cessite une d\u00e9tection rapide des premiers signes de la maladie. Les outils \u00e0 disposition du SSA \u00e9taient multiples\u00a0:<\/p>\n<ul class=\"list\">\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0095\" class=\"u-margin-s-bottom\">diagnostic RT-PCR du SARS-CoV-2\u00a0dans des pr\u00e9l\u00e8vements rhinopharyng\u00e9s\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0100\" class=\"u-margin-s-bottom\">s\u00e9rodiagnostic donnant le nombre de personnels expos\u00e9s au SARS-CoV-2\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0105\" class=\"u-margin-s-bottom\">strat\u00e9gie de bios\u00e9curit\u00e9 et de gestion \u00e9pid\u00e9miologique des clusters\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0110\" class=\"u-margin-s-bottom\">vaccination\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0115\" class=\"u-margin-s-bottom\">suivi du virus dans l\u2019environnement.<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<div id=\"par0120\" class=\"u-margin-s-bottom\">L\u2019innovation a consist\u00e9 \u00e0 mettre en place pour la campagne de navigation de f\u00e9vrier \u00e0 juin 2021\u00a0une vaccination obligatoire, une capacit\u00e9 de diagnostic mol\u00e9culaire embarqu\u00e9e avec RT-qPCR sp\u00e9cifique COVID-19\u00a0et panel PCR syndromique, une limitation des contacts sociaux, des mesures barri\u00e8res et, pour la premi\u00e8re fois, un vaste programme de surveillance des eaux noires.<\/div>\n<div id=\"par0125\" class=\"u-margin-s-bottom\">L\u2019ensemble de l\u2019\u00e9quipage a \u00e9t\u00e9 vaccin\u00e9 selon une r\u00e8gle obligatoire \u00e9tablie pour la premi\u00e8re fois dans les forces arm\u00e9es fran\u00e7aises \u00e0 l\u2019occasion de cette mission en utilisant 2\u00a0doses de Comirnaty\u00ae \u00e0 21\u00a0jours d\u2019intervalle. Environ 98\u00a0% des membres de l\u2019\u00e9quipage ont \u00e9t\u00e9 enti\u00e8rement vaccin\u00e9s dans les deux semaines pr\u00e9c\u00e9dant le d\u00e9part. Moins de 2\u00a0% des membres de l\u2019\u00e9quipage n\u2019ont pas pu \u00eatre vaccin\u00e9s en raison d\u2019ant\u00e9c\u00e9dents cliniques COVID-19\u00a0r\u00e9cents (2\/3\u00a0des non-vaccin\u00e9s) ou de contre-indications m\u00e9dicales. Ainsi, plus de 99\u00a0% des membres de l\u2019\u00e9quipage \u00e9taient immunis\u00e9s contre le SARS-CoV-2, par le vaccin et\/ou l\u2019infection par des d\u00e9riv\u00e9s pr\u00e9coces de la souche Wuhan.<\/div>\n<div id=\"par0130\" class=\"u-margin-s-bottom\">Au cours de la campagne 2021, les membres de l\u2019\u00e9quipage pr\u00e9sentant un tableau d\u2019infection respiratoire ont \u00e9t\u00e9 test\u00e9s par le personnel m\u00e9dical avec une RT-PCR Genexpert\u00ae (Cepheid) ou ID Now\u00ae (Abbott) pour la COVID-19. Pour les patients pr\u00e9sentant une symptomatologie moins \u00e9vocatrice, une PCR multiplex de type FilmArray\u00ae (Biom\u00e9rieux) a \u00e9t\u00e9 r\u00e9alis\u00e9e \u00e0 la recherche d\u2019autres agents pathog\u00e8nes \u00e0 tropisme respiratoire. Les 283\u00a0tests PCR effectu\u00e9s \u00e0 bord au cours de la mission et les tests effectu\u00e9s \u00e0 l\u2019arriv\u00e9e se sont r\u00e9v\u00e9l\u00e9s constamment n\u00e9gatifs pour le COVID-19. Sur la vingtaine de PCR syndromiques r\u00e9alis\u00e9es, 16\u00a0\u00e9taient positives avec d\u2019autres virus respiratoires (virus parainfluenza, metapneumovirus, virus respiratoire syncitial, rhinovirus).<\/div>\n<\/section>\n<section id=\"sec0050\">\n<h3 id=\"sect0070\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">Mise en place d\u2019un laboratoire d\u00e9di\u00e9 de biologie mol\u00e9culaire pour les eaux noires<\/h3>\n<div id=\"par0135\" class=\"u-margin-s-bottom\">Pour assurer le suivi environnemental d\u00e9sir\u00e9 par la Marine, plusieurs strat\u00e9gies ont \u00e9t\u00e9 propos\u00e9es. L\u2019IRBA a pr\u00e9sent\u00e9 lors d\u2019une r\u00e9union du Service de soutien de la Flotte (SSF) une solution bas\u00e9e sur les m\u00e9thodes du r\u00e9seau Ob\u00e9pine. Convaincu, le SSF a donc demand\u00e9 \u00e0 l\u2019IRBA de contribuer \u00e0 la mise en place d\u2019une surveillance des eaux noires du porte-avions, en adaptant le protocole d\u2019Ob\u00e9pine sous le nom d\u2019Ob\u00e9pine+. Cette adaptation s\u2019est faite en partenariat avec le laboratoire d\u2019analyses de surveillance et d\u2019expertise de la Marine (LASEM), l\u2019H\u00f4pital d\u2019instruction des arm\u00e9es Sainte-Anne de Toulon et le laboratoire de recherche et de d\u00e9veloppement d\u2019Eau de Paris, membre comme l\u2019IRBA du r\u00e9seau Ob\u00e9pine.<\/div>\n<div id=\"par0140\" class=\"u-margin-s-bottom\">L\u2019enjeu technique \u00e9tait majeur. En effet, plusieurs param\u00e8tres diff\u00e8rent entre les eaux us\u00e9es habituellement analys\u00e9es par le r\u00e9seau Ob\u00e9pine et les eaux noires du PAN CDG. En premier lieu, il n\u2019y a pas de m\u00e9lange, sauf avaries ou pannes, entre les \u00ab\u00a0eaux grises\u00a0\u00bb (douches, vaisselle, lavage) et les eaux \u00ab\u00a0eaux noires\u00a0\u00bb issues des WC \u00e0 bord. Comme les WC fonctionnent avec une aspiration par d\u00e9pression, et donc, une chasse d\u2019eau r\u00e9duite au minimum (1,2\u00a0L\/chasse), les eaux noires issues des WC sont bien plus concentr\u00e9es que les eaux us\u00e9es pour lesquelles des protocoles d\u2019Ob\u00e9pine existaient depuis mars 2020. Le pr\u00e9l\u00e8vement est \u00e9galement plus complexe\u00a0: les caisses de collecte \u00e9tant en d\u00e9pression, elles ne disposent pas de syst\u00e8me de soutirage et sont vidang\u00e9es automatiquement plus ou moins r\u00e9guli\u00e8rement d\u00e8s l\u2019atteinte du niveau haut.<\/div>\n<div id=\"par0145\" class=\"u-margin-s-bottom\">Pour l\u2019analyse, deux strat\u00e9gies ont \u00e9t\u00e9 explor\u00e9es\u00a0: exploiter le mat\u00e9riel d\u00e9j\u00e0 pr\u00e9sent \u00e0 bord du porte-avions (GeneXpert\u00ae) ou mettre en place un laboratoire complet de biologie mol\u00e9culaire. Ceci s\u2019est fait dans un d\u00e9lai tr\u00e8s contraint, le projet d\u00e9butant en d\u00e9cembre 2020, alors que l\u2019appareillage \u00e9tait pr\u00e9vu le 11\u00a0f\u00e9vrier 2021.<\/div>\n<div id=\"par0150\" class=\"u-margin-s-bottom\">Les premi\u00e8res exp\u00e9rimentations r\u00e9alis\u00e9es \u00e0 l\u2019HIA Sainte-Anne et \u00e0 l\u2019IRBA ont montr\u00e9 que le syst\u00e8me GeneXpert\u00ae \u00e9tait en mesure de d\u00e9tecter du SARS-CoV-2\u00a0dans les selles, mais avec une faible sensibilit\u00e9 et une incertitude quant \u00e0 la disponibilit\u00e9 des r\u00e9actifs n\u00e9cessaires en raison de fortes tensions sur l\u2019approvisionnement en cartouches \u00ab\u00a0SARS-CoV-2\u00a0\u00bb. Le choix s\u2019est donc port\u00e9 sur l\u2019installation d\u2019un laboratoire de biologie mol\u00e9culaire au sein du porte-avions. Ce choix fait, il s\u2019est agi ensuite de choisir les \u00e9quipements n\u00e9cessaires \u00e0 la r\u00e9alisation de l\u2019ensemble de la cha\u00eene analytique.<\/div>\n<div id=\"par0155\" class=\"u-margin-s-bottom\">En parall\u00e8le, il a fallu passer, en moins de trois mois, d\u2019un mod\u00e8le mis au point pour les eaux us\u00e9es en agglom\u00e9ration \u00e0 un second, adapt\u00e9 aux eaux noires du PAN CDG. Travaillant main dans la main, m\u00e9decins, virologues, chercheurs et \u00e9pid\u00e9miologistes, v\u00e9t\u00e9rinaires et pharmaciens d\u2019Eau de Paris, de l\u2019IRBA et du r\u00e9seau Ob\u00e9pine sont parvenus, \u00e0 identifier des appareils n\u00e9cessaires aux analyses et \u00e0 \u00e9tablir les protocoles exp\u00e9rimentaux sp\u00e9cifiques. Le LASEM de la Base navale de Toulon a apport\u00e9 son expertise, en participant \u00e0 la mise en place du protocole de pr\u00e9l\u00e8vement et en servant d\u2019interm\u00e9diaire entre le PAN CDG, Eau de Paris et l\u2019IRBA (envoi des \u00e9chantillons pour analyse, \u00e0 Paris dans le cadre de la validation de la m\u00e9thode de pr\u00e9l\u00e8vement et d\u2019analyses).<\/div>\n<div id=\"par0160\" class=\"u-margin-s-bottom\">Les premiers \u00e9chantillons ont \u00e9t\u00e9 fournis aux chercheurs d\u2019Eau de Paris, le 11\u00a0d\u00e9cembre 2020\u00a0pour adapter leur protocole aux eaux noires du porte-avions. Le mode op\u00e9ratoire sur les eaux us\u00e9es n\u00e9cessitait une ultracentrifugation pour concentrer l\u2019\u00e9chantillon. Cette concentration s\u2019est r\u00e9v\u00e9l\u00e9e inutile avec les eaux noires du PAN CDG. Les analyses ont donc pu \u00eatre lanc\u00e9es directement \u00e0 partir des \u00e9chantillons primaires.<\/div>\n<div id=\"par0165\" class=\"u-margin-s-bottom\">\u00c0 la suite des exp\u00e9rimentations r\u00e9alis\u00e9es \u00e0 Eau de Paris et du choix des \u00e9quipements \u00e0 d\u00e9ployer \u00e0 bord, le protocole retenu a consist\u00e9 en 4\u00a0\u00e9tapes\u00a0:<\/p>\n<ul class=\"list\">\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0170\" class=\"u-margin-s-bottom\">pr\u00e9l\u00e8vement des eaux noires\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0175\" class=\"u-margin-s-bottom\">extraction des acides nucl\u00e9iques par agitation\/s\u00e9dimentation et capture\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0180\" class=\"u-margin-s-bottom\">amplification par RT-qPCR des cibles identifi\u00e9es (g\u00e8nes\u00a0<em>E<\/em>\u00a0et\u00a0<em>RdRp<\/em>) dans le g\u00e9nome du SARS-CoV-2\u00a0;<\/div>\n<\/li>\n<li class=\"react-xocs-list-item\"><span class=\"list-label\">\u2022<\/span>\n<div id=\"par0185\" class=\"u-margin-s-bottom\">analyse des donn\u00e9es et suivi comparatif dans le temps.<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"u-margin-s-bottom\">\n<div id=\"par0190\">Une fois les mat\u00e9riels et consommables livr\u00e9s, des experts de l\u2019IRBA et d\u2019Eau de Paris se sont rendus \u00e0 Toulon avec ces mat\u00e9riels pour mettre en place le laboratoire. Les locaux avaient \u00e9t\u00e9 d\u00e9finis et pr\u00e9par\u00e9s par le Bord, tant en mobilier qu\u2019en moyens \u00e9lectriques et organis\u00e9s de mani\u00e8re \u00e0 respecter une marche en avant (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0005\" name=\"bfig0005\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0005\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 1<\/span><\/span><\/a>). Les mat\u00e9riels ont \u00e9t\u00e9 d\u00e9ball\u00e9s et mis en service en deux jours (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0010\" name=\"bfig0010\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0010\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 2<\/span><\/span><\/a>). Les programmes et gammes d\u2019\u00e9talonnage ont \u00e9t\u00e9 charg\u00e9s sur les automates avec le soutien d\u2019Eau de Paris. Les premi\u00e8res analyses ont \u00e9t\u00e9 conduites avec l\u2019assistance d\u2019un m\u00e9decin biologiste pr\u00e9sent \u00e0 bord jusqu\u2019\u00e0 Djibouti.<\/div>\n<figure id=\"fig0005\" class=\"figure text-xs\"><img decoding=\"async\" src=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr1.jpg\" alt=\"\" height=\"180\" aria-describedby=\"cap0005\" \/><\/p>\n<ol class=\"u-margin-s-bottom\">\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download high-res image (238KB)\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr1_lrg.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download high-res image (238KB)<\/span><\/span><\/span><\/a><\/li>\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download full-size image\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr1.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download full-size image<\/span><\/span><\/span><\/a><\/li>\n<\/ol>\n<p id=\"spar0015\"><span class=\"label\">Figure 1<\/span>.\u00a0Plan d\u2019organisation du laboratoire Obepine+ \u00e0 bord du PA Charles-de-Gaulle. Le flux d\u2019air va de la zone blanche (o\u00f9 se trouve la hotte de pr\u00e9paration des mix PCR et le stockage des r\u00e9actifs) vers la zone jaune (extraction et amplification) et la zone orange (aliquotage et pool des \u00e9chantillons primaires).<\/p>\n<\/figure>\n<figure id=\"fig0010\" class=\"figure text-xs\"><img decoding=\"async\" src=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr2.jpg\" alt=\"\" height=\"482\" aria-describedby=\"cap0010\" \/><\/p>\n<ol class=\"u-margin-s-bottom\">\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download high-res image (252KB)\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr2_lrg.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download high-res image (252KB)<\/span><\/span><\/span><\/a><\/li>\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download full-size image\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr2.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download full-size image<\/span><\/span><\/span><\/a><\/li>\n<\/ol>\n<p id=\"spar0020\"><span class=\"label\">Figure 2<\/span>.\u00a0Disposition des diff\u00e9rents automates dans la zone jaune, correspondant \u00e0 l\u2019extraction et l\u2019amplification des \u00e9chantillons.<\/p>\n<\/figure>\n<\/div>\n<\/section>\n<section id=\"sec0055\">\n<h3 id=\"sect0075\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">\u00c9chantillonnage des eaux noires<\/h3>\n<div id=\"par0195\" class=\"u-margin-s-bottom\">Pour le porte-avions et compte tenu de la configuration du syst\u00e8me d\u2019eaux noires, une strat\u00e9gie d\u2019\u00e9chantillonnage composite des r\u00e9servoirs d\u2019eaux noires a \u00e9t\u00e9 mise en place. Cette strat\u00e9gie impliquait d\u2019\u00e9chantillonner, chaque jour, jusqu\u2019\u00e0 20\u00a0r\u00e9servoirs, de taille diff\u00e9rente et collectant de 2\u00a0\u00e0 32\u00a0WC. Cette charge a \u00e9t\u00e9 r\u00e9duite \u00e0 5\u00a0r\u00e9servoirs par jour dans un contexte d\u2019absence de cas cliniques d\u00e9tect\u00e9s. Il faut noter la complexit\u00e9 de l\u2019\u00e9chantillonnage li\u00e9e \u00e0 la configuration sp\u00e9cifique des r\u00e9seaux d\u2019eaux noires des navires et la n\u00e9cessit\u00e9 d\u2019adapter un syst\u00e8me d\u2019\u00e9chantillonnage interne par des ing\u00e9nieurs experts.<\/div>\n<\/section>\n<section id=\"sec0060\">\n<h3 id=\"sect0080\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">R\u00e9sultats principaux sur les campagnes r\u00e9alis\u00e9es en 2020\u00a0et 2021<\/h3>\n<section id=\"sec0065\">\n<h4 id=\"sect0085\" class=\"u-margin-m-top u-margin-xs-bottom\">Premi\u00e8re campagne (f\u00e9vrier\u2013mai 2021)<\/h4>\n<div class=\"u-margin-s-bottom\">\n<div id=\"par0200\">Lors de cette campagne, la situation \u00e9pid\u00e9miologique \u00e9tait sous tension avec l\u2019apparition en d\u00e9cembre 2020\u00a0du variant Alpha. La quarantaine a \u00e9t\u00e9 impos\u00e9e \u00e0 tout l\u2019\u00e9quipage dix jours avant appareillage, et 99\u00a0% des marins ont \u00e9t\u00e9 vaccin\u00e9s. L\u2019excr\u00e9tion du virus dans les f\u00e8ces, surveill\u00e9e par la quantification quotidienne dans les eaux noires des s\u00e9quences cibles des g\u00e8nes\u00a0<em>E<\/em>\u00a0(enveloppe) et\u00a0<em>RdRP<\/em>\u00a0(ARN polym\u00e9rase ARN-d\u00e9pendante), a \u00e9t\u00e9 utilis\u00e9e comme indicateur de la pr\u00e9sence du virus (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0015\" name=\"bfig0015\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0015\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 3<\/span><\/span><\/a>).<\/div>\n<figure id=\"fig0015\" class=\"figure text-xs\"><img decoding=\"async\" src=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr3.jpg\" alt=\"\" height=\"364\" aria-describedby=\"cap0015\" \/><\/p>\n<ol class=\"u-margin-s-bottom\">\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download high-res image (269KB)\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr3_lrg.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download high-res image (269KB)<\/span><\/span><\/span><\/a><\/li>\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download full-size image\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr3.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download full-size image<\/span><\/span><\/span><\/a><\/li>\n<\/ol>\n<p id=\"spar0025\"><span class=\"label\">Figure 3<\/span>.\u00a0Valeurs maximales et moyennes quotidiennes des concentrations d\u2019\u00e9quivalents g\u00e9nome\u00a0<em>RdRP<\/em>\u00a0dans les caisses d\u2019eaux noires. Les concentrations augmentent apr\u00e8s chaque escale puis diminuent r\u00e9guli\u00e8rement.<\/p>\n<\/figure>\n<\/div>\n<div id=\"par0205\" class=\"u-margin-s-bottom\">La courbe de surveillance de la concentration des cibles dans les eaux noires a montr\u00e9 une augmentation apr\u00e8s chaque arriv\u00e9e significative de nouveau personnel au d\u00e9part et pendant les escales. Un pic du g\u00e8ne\u00a0<em>RdRp<\/em>\u00a0(SARS-CoV-2) a \u00e9t\u00e9 d\u00e9tect\u00e9 lors de l\u2019escale \u00e0 Abu Dhabi, sugg\u00e9rant sans doute l\u2019embarquement de nouveaux membres d\u2019\u00e9quipage qui \u00e9taient en convalescence et excr\u00e9taient le virus dans les selles. Le 22\u00a0avril, \u00e0 l\u2019occasion de l\u2019escale de Manama, compte tenu de la croissance de l\u2019occurrence du variant Alpha en France, des r\u00e9actifs d\u00e9di\u00e9s \u00e0 sa d\u00e9tection (S\/H69-V70) ont \u00e9t\u00e9 livr\u00e9s au laboratoire de bord en cas de signaux positifs. L\u2019\u00e9volution favorable des quantifications dans les caisses a permis de se passer de ces tests, alors non valid\u00e9s sur les eaux noires.<\/div>\n<div id=\"par0210\" class=\"u-margin-s-bottom\">En outre, l\u2019interpr\u00e9tation \u00e9pid\u00e9miologique des r\u00e9sultats bruts de quantification \u00e9tait difficile et n\u00e9cessitait un lissage math\u00e9matique et une mod\u00e9lisation pour r\u00e9duire et corriger partiellement le bruit associ\u00e9 \u00e0 la quantification du g\u00e9nome du SARS-CoV-2\u00a0dans les eaux noires\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0185\" name=\"bbib0185\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0185\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[8]<\/span><\/span><\/a>. Chaque \u00e9pisode de d\u00e9tection du virus dans les eaux us\u00e9es \u00e9tait transitoire, ce qui sugg\u00e8re un contr\u00f4le efficace de la circulation du virus (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0015\" name=\"bfig0015\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0015\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 3<\/span><\/span><\/a>).<\/div>\n<div id=\"par0215\" class=\"u-margin-s-bottom\">Enfin, la strat\u00e9gie de vaccination obligatoire avec un sch\u00e9ma de deux doses, combin\u00e9e \u00e0 de nombreuses autres mesures de barri\u00e8re telles que la limitation des contacts sociaux pendant les arr\u00eats ou les escales et des interventions non pharmaceutiques renforc\u00e9es (filtres de ventilation et bionettoyage des surfaces), s\u2019est av\u00e9r\u00e9e \u00eatre un bouclier efficace contre la r\u00e9introduction de la COVID-19\u00a0dans un contexte de circulation des variants Alpha et B\u00eata dans le monde entier. Le suivi clinique et virologique des individus et la surveillance environnementale du SARS-CoV-2\u00a0ont confirm\u00e9 l\u2019efficacit\u00e9 de la strat\u00e9gie de vaccination obligatoire et le r\u00f4le de l\u2019immunit\u00e9 collective pour pr\u00e9venir la r\u00e9infection et la propagation du virus dans les environnements confin\u00e9s, du moins contre les souches variantes Alpha et B\u00eata qui circulaient \u00e0 l\u2019\u00e9poque. Chaque \u00e9pisode de d\u00e9tection du virus dans les eaux us\u00e9es \u00e9tait transitoire, ce qui sugg\u00e8re un effet st\u00e9rilisant du vaccin sur la circulation du virus parmi les populations ayant une couverture vaccinale \u00e9lev\u00e9e (2\u00a0doses), m\u00eame dans un environnement favorisant la transmission du virus. Il faut souligner toutefois que la vaccination\u2013selon les variants, Delta et Omicron notamment\u2013ne pr\u00e9vient pas contre l\u2019infection dans 100\u00a0% des cas, et qu\u2019il n\u2019y a pas de donn\u00e9es consolid\u00e9es sur l\u2019excr\u00e9tion du virus dans les selles des personnes vaccin\u00e9es ou infect\u00e9es naturellement.<\/div>\n<\/section>\n<section id=\"sec0070\">\n<h4 id=\"sect0090\" class=\"u-margin-m-top u-margin-xs-bottom\">2<sup>e<\/sup>\u00a0campagne (novembre\u2013d\u00e9cembre 2021)<\/h4>\n<div class=\"u-margin-s-bottom\">\n<div id=\"par0220\">Cette campagne a appareill\u00e9 en pleine vague Delta. Consid\u00e9rant la capacit\u00e9 de ce variant \u00e0 contaminer les sujets m\u00eame vaccin\u00e9s, l\u2019observation d\u2019une dynamique diff\u00e9rente de la pr\u00e9c\u00e9dente mission \u00e9tait attendue. La vaccination n\u2019a ainsi pas emp\u00each\u00e9, durant cette mission, la survenue de cas cliniques. Cette mission a permis de valider le versant pr\u00e9dictif du suivi de la charge virale dans les eaux noires, avec des pics observ\u00e9s un \u00e0 deux jours avant et corr\u00e9l\u00e9s avec des sujets diagnostiqu\u00e9s positifs au SARS-CoV-2. Le challenge a consist\u00e9 \u00e0 identifier les marins contamin\u00e9s car il est apparu que l\u2019usage des toilettes se r\u00e9alisait plus dans l\u2019espace de travail que dans l\u2019espace de vie, ces espaces \u00e9tant situ\u00e9s dans des zones diff\u00e9rentes (tranches) du porte-avions. Aussi, les pics observ\u00e9s en caisse D350\u00a0ont \u00e9t\u00e9 caus\u00e9s par des marins de la tranche O, mais post\u00e9s en tranche D (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0020\" name=\"bfig0020\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0020\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 4<\/span><\/span><\/a>).<\/div>\n<figure id=\"fig0020\" class=\"figure text-xs\"><img decoding=\"async\" src=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr4.jpg\" alt=\"\" height=\"409\" aria-describedby=\"cap0020\" \/><\/p>\n<ol class=\"u-margin-s-bottom\">\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download high-res image (285KB)\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr4_lrg.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download high-res image (285KB)<\/span><\/span><\/span><\/a><\/li>\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download full-size image\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr4.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download full-size image<\/span><\/span><\/span><\/a><\/li>\n<\/ol>\n<p id=\"spar0030\"><span class=\"label\">Figure 4<\/span>.\u00a0Suivi de la concentration en \u00e9quivalents-g\u00e9nomes\/L des g\u00e8nes\u00a0<em>RdRP<\/em>\u00a0et\u00a0<em>E<\/em>\u00a0dans la caisse D350. L\u2019\u00e9l\u00e9vation de la concentration dans les eaux us\u00e9es pr\u00e9c\u00e8de l\u2019identification des cas cliniques et d\u2019autant plus que les cas sont nombreux. a.11\u00a0novembre 2021\u00a0: 1\u00a0cas positif (logement en tranche O)\u00a0; b.18\u00a0novembre 2021\u00a0: 4\u00a0cas positifs (logement en tranche S)\u00a0; c. 24\u00a0novembre 2021\u00a0: 1\u00a0cas positif (logement en tranche 0).<\/p>\n<\/figure>\n<\/div>\n<div class=\"u-margin-s-bottom\">\n<div id=\"par0225\">Apr\u00e8s apparition de cas \u00e0 bord, les concentrations virales ont augment\u00e9 dans la caisse C320Td, qui draine justement la tranche A, zone o\u00f9 \u00e9taient confin\u00e9s les cas d\u00e9tect\u00e9s (<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#fig0025\" name=\"bfig0025\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"fig0025\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Fig. 5<\/span><\/span><\/a>).<\/div>\n<figure id=\"fig0025\" class=\"figure text-xs\"><img decoding=\"async\" src=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr5.jpg\" alt=\"\" height=\"420\" aria-describedby=\"cap0025\" \/><\/p>\n<ol class=\"u-margin-s-bottom\">\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download high-res image (275KB)\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr5_lrg.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download high-res image (275KB)<\/span><\/span><\/span><\/a><\/li>\n<li><a class=\"anchor download-link u-font-sans anchor-primary\" title=\"Download full-size image\" href=\"https:\/\/ars.els-cdn.com\/content\/image\/1-s2.0-S0001407922002412-gr5.jpg\" target=\"_blank\" rel=\"noopener\" download=\"\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Download:\u00a0<span class=\"download-link-title\">Download full-size image<\/span><\/span><\/span><\/a><\/li>\n<\/ol>\n<p id=\"spar0035\"><span class=\"label\">Figure 5<\/span>.\u00a0Suivi de la concentration en \u00e9quivalents-g\u00e9nomes\/L des g\u00e8nes\u00a0<em>RdRP<\/em>\u00a0et\u00a0<em>E<\/em>\u00a0dans la caisse C320\u00a0tribord. L\u2019\u00e9l\u00e9vation de la concentration dans les eaux us\u00e9es se produit \u00e0 la suite de l\u2019isolement dans les tranches collect\u00e9es par la caisse C320. a.24\u00a0novembre 2021\u00a0: isolement de 2\u00a0cas positifs (tranche A et B)\u00a0; 26\u00a0novembre 2021\u00a0: isolement de 3\u00a0cas positifs (tranche A et B)\u00a0; b. 8\u00a0d\u00e9cembre 2021\u00a0: 1\u00a0cas positif (non vaccin\u00e9) log\u00e9 en tranche A.<\/p>\n<\/figure>\n<\/div>\n<div id=\"par0230\" class=\"u-margin-s-bottom\">Lors de cette deuxi\u00e8me mission, il a \u00e9galement \u00e9t\u00e9 observ\u00e9 une meilleure corr\u00e9lation entre les deux cibles\u00a0<em>E<\/em>\u00a0et\u00a0<em>RdRP<\/em>, et leur emploi simultan\u00e9 a pu \u00eatre r\u00e9alis\u00e9 tout au long de la mission, du fait de meilleures conditions de stockage et d\u2019une temp\u00e9rature, dans le local, moins \u00e9lev\u00e9e que lors de la premi\u00e8re mission.<\/div>\n<div id=\"par0235\" class=\"u-margin-s-bottom\">L\u2019IRBA a donc pu d\u00e9velopper tr\u00e8s rapidement un outil op\u00e9rationnel de surveillance des infections virales de l\u2019\u00e9quipage gr\u00e2ce \u00e0 l\u2019expertise acquise dans le r\u00e9seau Ob\u00e9pine. Malgr\u00e9 tout, c\u2019est un outil exigeant n\u00e9cessitant des comp\u00e9tences av\u00e9r\u00e9es en biologie mol\u00e9culaire que la Marine devra mettre en place et entretenir si l\u2019utilisation de tels outils \u00e9tait g\u00e9n\u00e9ralis\u00e9e. Le d\u00e9veloppement de m\u00e9thodes simples et automatis\u00e9es est donc un des axes futurs d\u2019am\u00e9lioration dans le cadre d\u2019une utilisation en situation op\u00e9rationnelle.<\/div>\n<\/section>\n<\/section>\n<\/section>\n<section id=\"sec0075\">\n<h2 id=\"sect0095\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">Axes de recherche futurs pour les arm\u00e9es<\/h2>\n<div id=\"par0240\" class=\"u-margin-s-bottom\">Pour le service de sant\u00e9 des arm\u00e9es, plusieurs axes de recherche peuvent \u00eatre d\u00e9velopp\u00e9s au profit des forces arm\u00e9es en campagne\u00a0: d\u2019abord l\u2019alerte en d\u00e9but de phase \u00e9pid\u00e9mique mais aussi l\u2019extension de la recherche \u00e0 d\u2019autres dangers microbiologiques particuli\u00e8rement ceux de la menace intentionnelle en adaptant les techniques de laboratoire afin qu\u2019elles soient utilisables et fiables sur le terrain \u00e0 proximit\u00e9 des forces. La d\u00e9tection de particules virales dans les eaux us\u00e9es \u00e0 des fins de surveillance \u00e9pid\u00e9miologique est utilis\u00e9 depuis plusieurs ann\u00e9es, en particulier pour d\u00e9tecter une circulation du virus de la poliomy\u00e9lite ou de norovirus\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0160\" name=\"bbib0160\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0160\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[3]<\/span><\/span><\/a>.<\/div>\n<section id=\"sec0080\">\n<h3 id=\"sect0100\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">\u00c9pid\u00e9miologie des maladies transmissibles<\/h3>\n<div id=\"par0245\" class=\"u-margin-s-bottom\">Des sites clos (bases et camps en op\u00e9rations ext\u00e9rieures (OPEX) dont l\u2019op\u00e9ration Barkhane, b\u00e2timents de la Marine nationale\u2026) ou sensibles (\u00e9tats-majors, sites concourant \u00e0 la dissuasion nucl\u00e9aire\u2026) pourraient b\u00e9n\u00e9ficier de la mise en \u0153uvre de cette technique et ainsi permettre la d\u00e9tection tr\u00e8s pr\u00e9coce d\u2019une circulation virale au sein de leur collectivit\u00e9. Cependant, les possibilit\u00e9s d\u2019\u00e9chantillonnage des eaux us\u00e9es d\u00e9pendent fortement de l\u2019architecture des syst\u00e8mes d\u2019\u00e9vacuation (pr\u00e9sence d\u2019un r\u00e9servoir, d\u2019un bac tampon ou d\u2019un tout-\u00e0-l\u2019\u00e9gout) et ne sont pas toujours r\u00e9alisables.<\/div>\n<div id=\"par0250\" class=\"u-margin-s-bottom\">Avec le paludisme, les arboviroses constituent \u00e0 ce jour la cause essentielle des syndromes f\u00e9briles \u00e0 sp\u00e9cificit\u00e9 tropicale recens\u00e9s chez les militaires fran\u00e7ais. Elles sont souvent incapacitantes et de diagnostic diff\u00e9rentiel difficile. De surcro\u00eet, la propension des arbovirus \u00e0 \u00e9merger dans de nouveaux territoires a encore \u00e9t\u00e9 r\u00e9cemment illustr\u00e9e par l\u2019\u00e9pid\u00e9mie \u00e0 virus Zika en 2019, la diffusion du virus Oropouche en Guyane Fran\u00e7aise et la r\u00e9currence des foyers autochtones de transmission des virus Dengue, Chikungunya et Zika en 2020. L\u2019IRBA \u2014\u00a0dans le cadre d\u2019une coop\u00e9ration avec d\u2019autres \u00e9quipes Ob\u00e9pine\u00a0\u2014 m\u00e8ne un projet de recherche appliqu\u00e9e visant \u00e0 d\u00e9velopper de nouvelles m\u00e9thodes permettant de surveiller la circulation des arbovirus \u00e0 partir de l\u2019analyse des excr\u00e9tas de moustiques et aussi des eaux us\u00e9es. Cette approche pourrait permettre de cartographier des arbovirus circulant sur les th\u00e9\u00e2tres d\u2019op\u00e9ration militaires mais aussi en m\u00e9tropole comme syst\u00e8me d\u2019alerte pr\u00e9coce environnementale, \u00e9vocatrice d\u2019infections ou de risque d\u2019infections humaines.<\/div>\n<div id=\"par0255\" class=\"u-margin-s-bottom\">L\u2019IRBA s\u2019int\u00e9resse donc au d\u00e9veloppement de syst\u00e8mes automatis\u00e9s et\/ou robotis\u00e9s utilisables facilement sur le terrain par les forces arm\u00e9es. Ob\u00e9pine travaille sur ce sujet et \u00e9tudie la possibilit\u00e9 d\u2019utiliser des capteurs passifs. Des premiers contacts dans le domaine de la robotique et de l\u2019ing\u00e9nierie ont d\u00e9j\u00e0 \u00e9t\u00e9 pris. Le projet de d\u00e9veloppement d\u2019un outil de terrain adapt\u00e9 aux forces pourrait recevoir un accueil favorable des arm\u00e9es et des financements cons\u00e9quents.<\/div>\n<div id=\"par0260\" class=\"u-margin-s-bottom\">Le 2<sup>e<\/sup>\u00a0axe de recherche pourrait concerner l\u2019exploration fonctionnelles des virus dits cryptiques (i.e. d\u00e9tect\u00e9s dans les eaux us\u00e9es, mais pas d\u00e9tect\u00e9s dans les populations humaines correspondantes). L\u2019id\u00e9e consiste, \u00e0 partir des variants identifi\u00e9s dans les eaux us\u00e9es, d\u2019\u00e9valuer en quoi la dynamique phylog\u00e9n\u00e9tique observ\u00e9e pourrait refl\u00e9ter ce qui est observ\u00e9 en \u00e9pid\u00e9miologie humaine ou animale.<\/div>\n<\/section>\n<section id=\"sec0085\">\n<h3 id=\"sect0105\" class=\"u-h4 u-margin-m-top u-margin-xs-bottom\">Surveillance des agents chimiques<\/h3>\n<div id=\"par0265\" class=\"u-margin-s-bottom\">L\u2019\u00e9pid\u00e9miologie bas\u00e9e sur l\u2019analyse des eaux us\u00e9es a \u00e9t\u00e9 utilis\u00e9e par le pass\u00e9 pour estimer les consommations m\u00e9dicamenteuses \u00e0 diff\u00e9rentes \u00e9chelles (ville, pays). Par exemple, antibiotiques et anxiolytiques ont \u00e9t\u00e9 cibles d\u2019observatoires europ\u00e9ens utilisant, parmi d\u2019autres m\u00e9thodes, cet outil particulier.<\/div>\n<div id=\"par0270\" class=\"u-margin-s-bottom\">Plus r\u00e9cemment cette d\u00e9marche a \u00e9t\u00e9 appliqu\u00e9e \u00e0 \u00e9chelle europ\u00e9enne pour l\u2019estimation de la consommation de drogues donnant lieu \u00e0 abus [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0275\" name=\"bbib0275\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0275\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[27]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0280\" name=\"bbib0280\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0280\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[28]<\/span><\/span><\/a>,\u00a0<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0285\" name=\"bbib0285\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0285\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[29]<\/span><\/span><\/a>]. Dans ce cas, on retrouve dans les points forts de l\u2019approche la capacit\u00e9 \u00e0 donner une image agr\u00e9g\u00e9e des habitudes d\u2019une communaut\u00e9 (et leurs d\u00e9terminants) avec un nombre limit\u00e9 de pr\u00e9l\u00e8vements int\u00e9gratifs et \u00e0 tr\u00e8s grande \u00e9chelle. Cette approche utilisable dans la logique de conseil sanitaire et de pr\u00e9vention, fondements de l\u2019action du SSA, permet de pr\u00e9server l\u2019anonymat des consommateurs\/usagers puisque seul leur nombre moyen est \u00e9valu\u00e9, pour peu que l\u2019\u00e9chantillonnage soit suffisamment int\u00e9gratif (avec une absence de d\u00e9finition consensuelle sur la limite avec des pr\u00e9l\u00e8vements \u00ab\u00a0individuels\u00a0\u00bb permettant trop facilement d\u2019identifier le ou les consommateurs).<\/div>\n<div id=\"par0275\" class=\"u-margin-s-bottom\">Comme pour d\u2019autres agents, cette approche poss\u00e8de des limites, en particulier la complexit\u00e9 d\u2019un \u00e9chantillonnage repr\u00e9sentatif ou encore l\u2019incertitude associ\u00e9e \u00e0 l\u2019hypoth\u00e8se centrale d\u2019une consommation\/excr\u00e9tion moyenne par consommateur. Cette donn\u00e9e est complexe \u00e0 fiabiliser. Elle est probablement sensible \u00e0 l\u2019\u00e9chelle populationnelle\u00a0: juste \u00e0 l\u2019\u00e9chelle de population mais entach\u00e9e d\u2019une erreur sup\u00e9rieure lorsque l\u2019\u00e9chelle spatiale diminue. \u00c0 petite \u00e9chelle, il est s\u00fbrement d\u00e9licat de distinguer l\u2019excr\u00e9tion d\u2019un tr\u00e8s gros consommateur de celle de quatre consommateurs plus modestes. \u00c0 une \u00e9chelle importante, l\u2019hypoth\u00e8se d\u2019une mixit\u00e9 des profils est plus robuste.<\/div>\n<div id=\"par0280\" class=\"u-margin-s-bottom\">Enfin, il existe quelques travaux exploratoires d\u00e9montrant la faisabilit\u00e9 d\u2019une d\u00e9tection de substances explosives dans les eaux us\u00e9es [<a class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bib0145\" name=\"bbib0145\" data-sd-ui-side-panel-opener=\"true\" data-xocs-content-type=\"reference\" data-xocs-content-id=\"bib0145\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">30<\/span><\/span><\/a>]. Bien que ce besoin ne soit pas sp\u00e9cifiquement associ\u00e9 \u00e0 des missions du SSA, la mise en place de syst\u00e8mes de collecte ou de r\u00e9seaux de mesure \u00e0 des fins \u00e9pid\u00e9miologiques peut permettre d\u2019obtenir des \u00e9chantillons r\u00e9guliers autorisant l\u2019emploi de tels outils.<\/div>\n<\/section>\n<\/section>\n<section id=\"sec0090\">\n<h2 id=\"sect0110\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">Conclusion<\/h2>\n<div id=\"par0285\" class=\"u-margin-s-bottom\">La transposition \u00e0 la Marine nationale de la recherche de virus par analyse des eaux us\u00e9es de certaines villes de France r\u00e9alis\u00e9e par le r\u00e9seau Ob\u00e9pine a \u00e9t\u00e9 rendue possible gr\u00e2ce \u00e0 la collaboration de l\u2019IRBA, du LASEM et d\u2019Eau de Paris. Financ\u00e9e par le SSF et d\u00e9ploy\u00e9 dans un temps record sur le porte-avions nucl\u00e9aire Charles-de-Gaulle pour rechercher dans les eaux noires la pr\u00e9sence de virus, elle a permis au navire d\u2019\u00eatre totalement autonome en mati\u00e8re de surveillance environnementale avanc\u00e9e.<\/div>\n<div id=\"par0290\" class=\"u-margin-s-bottom\">Les r\u00e9sultats quotidiens fournis par le laboratoire, pilot\u00e9 par le groupement s\u00e9curit\u00e9 du porte-avions et partag\u00e9s avec l\u2019IRBA pour aider \u00e0 l\u2019interpr\u00e9tation, ont ainsi permis d\u2019apporter des \u00e9l\u00e9ments compl\u00e9mentaires \u00e0 l\u2019analyse m\u00e9dicale de la situation \u00e9pid\u00e9miologique \u00e0 bord.<\/div>\n<div id=\"par0295\" class=\"u-margin-s-bottom\">La pr\u00e9sence de cet outil de surveillance et d\u2019anticipation a am\u00e9lior\u00e9 la gestion des \u00e9v\u00e9nements d\u2019introduction du SARS-CoV-2\u00a0lors des escales ou des entr\u00e9es de personnels. L\u2019association d\u2019un protocole vaccinal obligatoire \u00e0 une surveillance de la circulation virale dans les eaux noires a permis d\u2019identifier et de localiser les cas, et donc de poursuivre la mission op\u00e9rationnelle en environnement COVID-19\u00a0en limitant la diffusion et en pr\u00e9servant la sant\u00e9 de l\u2019\u00e9quipage.<\/div>\n<div id=\"par0300\" class=\"u-margin-s-bottom\">Cet outil innovant peut \u00eatre r\u00e9orient\u00e9 vers la recherche de tout autre agent pathog\u00e8ne dans les eaux noires, voire \u00e0 terme, permettre d\u2019assurer une surveillance sanitaire d\u2019une emprise militaire, en mer ou \u00e0 terre, en m\u00e9tropole ou sur une base outre-mer \u00e0 partir du moment o\u00f9 le microorganisme est excr\u00e9t\u00e9 dans les selles. Malgr\u00e9 tout, cet outil n\u00e9cessitant une technicit\u00e9 \u00e9lev\u00e9e, il semble utile de rechercher une simplification des m\u00e9thodes pour des d\u00e9ploiements plus ais\u00e9s.<\/div>\n<\/section>\n<section id=\"sec0095\">\n<h2 id=\"sect0115\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">D\u00e9claration de liens d\u2019int\u00e9r\u00eats<\/h2>\n<div id=\"par0305\" class=\"u-margin-s-bottom\">Les auteurs d\u00e9clarent ne pas avoir de liens d\u2019int\u00e9r\u00eats.<\/div>\n<\/section>\n<\/div>\n<section id=\"ack0005\">\n<h2 id=\"sect0120\" class=\"u-h4 u-margin-l-top u-margin-xs-bottom\">Remerciements<\/h2>\n<div id=\"par0310\" class=\"u-margin-s-bottom\">Les auteurs remercient Chlo\u00e9 Lemoigne, Anne Depeille Wuille et Anne-Julie Gastelier (D\u00e9partement microbiologie et maladies infectieuses, IRBA) pour la r\u00e9alisation des analyses et les mises au point techniques.<\/div>\n<div id=\"par0315\" class=\"u-margin-s-bottom\">Les auteurs sont reconnaissants pour l\u2019aide, l\u2019expertise et les financements apport\u00e9s par la Marine nationale, en particulier le capitaine de fr\u00e9gate Pierre Lobet du porte-avions Charles-de-Gaulle pour sa grande efficacit\u00e9 dans l\u2019organisation des pr\u00e9l\u00e8vements et l\u2019adaptation des r\u00e9seaux d\u2019\u00e9vacuation.<\/div>\n<div id=\"par0320\" class=\"u-margin-s-bottom\">Les auteurs remercient le r\u00e9seau Ob\u00e9pine et le service de sant\u00e9 des arm\u00e9es pour les financements accord\u00e9s et les discussions utiles.<\/div>\n<\/section>\n<\/div>\n<div class=\"Tail\"><\/div>\n<div>\n<section id=\"bibl0005\" class=\"bibliography u-font-serif text-s\">\n<h2 class=\"section-title u-h4 u-margin-l-top u-margin-xs-bottom\">R\u00e9f\u00e9rences<\/h2>\n<section id=\"bibs0015\" class=\"bibliography-sec\">\n<ol id=\"reference-links-bibs0015\" class=\"references\">\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0150\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0150\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[1]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors u-font-sans\">G.\u00a0Medema,\u00a0L.\u00a0Heijnen,\u00a0G.\u00a0Elsinga,\u00a0R.\u00a0Italiaander,\u00a0A.\u00a0Brouwer<\/div>\n<div id=\"ref-id-sbref0150\" class=\"title text-m\">Presence of SARS-Coronavirus-2 RNA in sewage and correlation with reported COVID-19 prevalence in the early stage of the epidemic in The Netherlands<\/div>\n<\/div>\n<div class=\"host u-font-sans\">Environ Sci Technol Lett,\u00a07\u00a0(2020), pp.\u00a0511-516<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\">\n<div class=\"tooltip-wrapper\">\n<div><a class=\"anchor anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/ct.prod.getft.io\/c2NpZW5jZWRpcmVjdF9jb250ZW50aG9zdGluZyxhY3MsTVRBdU1UQXlNUzloWTNNdVpYTjBiR1YwZEM0d1l6QXdNelUzLFptTm1OMkV5TmpNdE9ESXlOUzAwWTJGaExXRXhNekV0WVRreVpEWmpZVEpsTWpjeSxodHRwczovL3B1YnMuYWNzLm9yZy9kb2kvMTAuMTAyMS9hY3MuZXN0bGV0dC4wYzAwMzU3P3NyYz1nZXRmdHI.O-pUg12vAnoY6uqIlCSUqCn4de0Vba_EZt2E2aZASLQ\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"pdf-link-0\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View at publisher<\/span><\/span><\/a><\/div>\n<\/div>\n<p><a class=\"anchor link anchor-primary\" href=\"https:\/\/doi.org\/10.1021\/acs.estlett.0c00357\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0150\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Crossref<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85088134905&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0150\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Presence%20of%20SARS-Coronavirus-2%20RNA%20in%20sewage%20and%20correlation%20with%20reported%20COVID-19%20prevalence%20in%20the%20early%20stage%20of%20the%20epidemic%20in%20The%20Netherlands&amp;publication_year=2020&amp;author=G.%20Medema&amp;author=L.%20Heijnen&amp;author=G.%20Elsinga&amp;author=R.%20Italiaander&amp;author=A.%20Brouwer\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0150\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0155\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0155\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[2]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors u-font-sans\">N.\u00a0Wurtz,\u00a0A.\u00a0Lacoste,\u00a0P.\u00a0Jardot,\u00a0A.\u00a0Delache,\u00a0X.\u00a0Fontaine,\u00a0M.\u00a0Verlande,\u00a0<em>et al.<\/em><\/div>\n<div id=\"ref-id-sbref0155\" class=\"title text-m\">Viral RNA in city wastewater as a key indicator of COVID-19 recrudescence and containment measures effectiveness<\/div>\n<\/div>\n<div class=\"host u-font-sans\">Front Microbiol,\u00a012\u00a0(2021), p.\u00a0664477<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\"><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85105611206&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0155\"><span 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class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Deciphering%20the%20diversities%20of%20astroviruses%20and%20noroviruses%20in%20wastewater%20treatment%20plant%20effluents%20by%20a%20high-throughput%20sequencing%20method&amp;publication_year=2015&amp;author=B.%20Prevost&amp;author=F.S.%20Lucas&amp;author=K.%20Ambert-Balay&amp;author=P.%20Pothier&amp;author=L.%20Moulin&amp;author=S.%20Wurtzer\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0160\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0165\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0165\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span 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class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=A%20nationwide%20indicator%20to%20smooth%20and%20normalize%20heterogeneous%20SARS-CoV2%C2%A0RNA%20data%20in%20wastewater&amp;publication_year=2022&amp;author=N.%20Cluzel&amp;author=M.%20Courbariaux&amp;author=S.%20Wang&amp;author=L.%20Moulin&amp;author=S.%20Wurtzer&amp;author=I.%20Bertrand\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0185\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0190\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0190\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span 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noopener\" aria-describedby=\"ref-id-sbref0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969721072892\" aria-describedby=\"ref-id-sbref0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85121116250&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=SARS-CoV-2%C2%A0genome%20quantification%20in%20wastewaters%20at%20regional%20and%20city%20scale%20allows%20precise%20monitoring%20of%20the%20whole%20outbreaks%20dynamics%20and%20variants%20spreading%20in%20the%20population&amp;publication_year=2022&amp;author=S.%20Wurtzer&amp;author=P.%20Waldman&amp;author=M.%20Levert&amp;author=N.%20Cluzel&amp;author=J.L.%20Almayrac&amp;author=C.%20Charpentier\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0190\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0195\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0195\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span 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href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0043135421006369\" aria-describedby=\"ref-id-sbref0195\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85111270709&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0195\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Making%20waves%3A%20plausible%20lead%20time%20for%20wastewater%20based%20epidemiology%20as%20an%20early%20warning%20system%20for%20COVID-19&amp;publication_year=2021&amp;author=K.%20Bibby&amp;author=A.%20Bivins&amp;author=Z.%20Wu&amp;author=D.%20North\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0195\"><span 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lang=\"en\"><a class=\"anchor pdf link anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969720325936\/pdfft?md5=b3360540da85fd6caed26e47e4584ef2&amp;pid=1-s2.0-S0048969720325936-main.pdf\" target=\"_blank\" rel=\"nofollow noopener\" aria-describedby=\"ref-id-sbref0200\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969720325936\" aria-describedby=\"ref-id-sbref0200\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85084636250&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0200\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=SARS-CoV-2%C2%A0in%20wastewater%3A%20state%20of%20the%20knowledge%20and%20research%20needs&amp;publication_year=2020&amp;author=M.%20Kitajima&amp;author=W.%20Ahmed&amp;author=K.%20Bibby&amp;author=A.%20Carducci&amp;author=C.P.%20Gerba&amp;author=K.A.%20Hamilton\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0200\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0205\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0205\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[12]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors u-font-sans\">S.\u00a0Wurtzer,\u00a0P.\u00a0Waldman,\u00a0A.\u00a0Ferrier-Rembert,\u00a0G.\u00a0Frenois-Veyrat,\u00a0J.M.\u00a0Mouchel,\u00a0M.\u00a0Boni,\u00a0<em>et al.<\/em><\/div>\n<div id=\"ref-id-sbref0205\" class=\"title text-m\">Several forms of SARS-CoV-2\u00a0RNA can be detected in wastewaters: implication for wastewater-based epidemiology and risk assessment<\/div>\n<\/div>\n<div class=\"host u-font-sans\">Water Res,\u00a0198\u00a0(2021), p.\u00a0117183<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\"><a class=\"anchor pdf link anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S004313542100381X\/pdfft?md5=953c9832140da464346d1ac7611ecb0f&amp;pid=1-s2.0-S004313542100381X-main.pdf\" target=\"_blank\" rel=\"nofollow noopener\" aria-describedby=\"ref-id-sbref0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S004313542100381X\" aria-describedby=\"ref-id-sbref0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85105286468&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Several%20forms%20of%20SARS-CoV-2%C2%A0RNA%20can%20be%20detected%20in%20wastewaters%3A%20implication%20for%20wastewater-based%20epidemiology%20and%20risk%20assessment&amp;publication_year=2021&amp;author=S.%20Wurtzer&amp;author=P.%20Waldman&amp;author=A.%20Ferrier-Rembert&amp;author=G.%20Frenois-Veyrat&amp;author=J.M.%20Mouchel&amp;author=M.%20Boni\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0205\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0210\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0210\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span 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class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S004896972104184X\" aria-describedby=\"ref-id-sbref0210\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85111208868&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0210\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Somatic%20coliphages%20are%20conservative%20indicators%20of%20SARS-CoV-2%C2%A0inactivation%20during%20heat%20and%20alkaline%20pH%20treatments&amp;publication_year=2021&amp;author=M.%20Varbanov&amp;author=I.%20Bertrand&amp;author=S.%20Philippot&amp;author=C.%20Retourney&amp;author=M.%20Gardette&amp;author=C.%20Hartard\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0210\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0215\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0215\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[14]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors u-font-sans\">M.\u00a0Desdouits,\u00a0J.C.\u00a0Piquet,\u00a0C.\u00a0Wacrenier,\u00a0C.\u00a0Le Mennec,\u00a0S.\u00a0Parnaudeau,\u00a0S.\u00a0Jousse,\u00a0<em>et al.<\/em><\/div>\n<div id=\"ref-id-sbref0215\" class=\"title text-m\">Can shellfish be used to monitor SARS-CoV-2\u00a0in the coastal environment?<\/div>\n<\/div>\n<div class=\"host u-font-sans\">Sci Total Environ,\u00a0778\u00a0(2021), p.\u00a0146270<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\"><a class=\"anchor pdf link anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969721013383\/pdfft?md5=bfdbbb49b05c0cc1af715ea667c26057&amp;pid=1-s2.0-S0048969721013383-main.pdf\" target=\"_blank\" rel=\"nofollow noopener\" aria-describedby=\"ref-id-sbref0215\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969721013383\" aria-describedby=\"ref-id-sbref0215\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85102291836&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0215\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Can%20shellfish%20be%20used%20to%20monitor%20SARS-CoV-2%C2%A0in%20the%20coastal%20environment&amp;publication_year=2021&amp;author=M.%20Desdouits&amp;author=J.C.%20Piquet&amp;author=C.%20Wacrenier&amp;author=C.%20Le%20Mennec&amp;author=S.%20Parnaudeau&amp;author=S.%20Jousse\" target=\"_blank\" rel=\"noopener noreferrer\" 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Manage,\u00a0301\u00a0(2022), p.\u00a0113866<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\"><a class=\"anchor pdf link anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0301479721019289\/pdfft?md5=7b108ddedb657d31e2459ef9dac6a6d8&amp;pid=1-s2.0-S0301479721019289-main.pdf\" target=\"_blank\" rel=\"nofollow noopener\" aria-describedby=\"ref-id-sbref0220\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0301479721019289\" aria-describedby=\"ref-id-sbref0220\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85116435786&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0220\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=First%20evidence%20of%20SARS-CoV-2%C2%A0genome%20detection%20in%20zebra%20mussel%20&amp;publication_year=2022&amp;author=A.%20Le%20Guernic&amp;author=M.%20Palos%20Ladeiro&amp;author=N.%20Boudaud&amp;author=J.%20Do%20Nascimento&amp;author=C.%20Gantzer&amp;author=J.-C.%20Inglard\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0220\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0225\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0225\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[16]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors u-font-sans\">A.\u00a0Serra-Compte,\u00a0S.\u00a0Gonzalez,\u00a0M.\u00a0Arnaldos,\u00a0S.\u00a0Berlendis,\u00a0S.\u00a0Courtois,\u00a0J.F.\u00a0Loret,\u00a0<em>et al.<\/em><\/div>\n<div id=\"ref-id-sbref0225\" class=\"title text-m\">Elimination of SARS-CoV-2\u00a0along wastewater and sludge treatment processes<\/div>\n<\/div>\n<div class=\"host u-font-sans\">Water Res,\u00a0202\u00a0(2021), p.\u00a0117435<\/div>\n<div class=\"ReferenceLinks u-font-sans\" lang=\"en\"><a class=\"anchor pdf link anchor-primary anchor-icon-left anchor-with-icon\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0043135421006333\/pdfft?md5=1f4d1408c9b3d2ddd7ea319a815c811d&amp;pid=1-s2.0-S0043135421006333-main.pdf\" target=\"_blank\" rel=\"nofollow noopener\" aria-describedby=\"ref-id-sbref0225\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View PDF<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0043135421006333\" aria-describedby=\"ref-id-sbref0225\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View article<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/www.scopus.com\/inward\/record.url?eid=2-s2.0-85111183611&amp;partnerID=10&amp;rel=R3.0.0\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0225\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Elimination%20of%20SARS-CoV-2%C2%A0along%20wastewater%20and%20sludge%20treatment%20processes&amp;publication_year=2021&amp;author=A.%20Serra-Compte&amp;author=S.%20Gonzalez&amp;author=M.%20Arnaldos&amp;author=S.%20Berlendis&amp;author=S.%20Courtois&amp;author=J.F.%20Loret\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0225\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0230\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0230\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[17]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors 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Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Zoonotic%20and%20reverse%20zoonotic%20transmissibility%20of%20SARS-CoV-2&amp;publication_year=2021&amp;author=I.V.%20Goraichuk&amp;author=V.%20Arefiev&amp;author=B.T.%20Stegniy&amp;author=A.P.%20Gerilovych\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0255\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0260\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0260\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">[24]<\/span><\/span><\/a><\/span>\n<div class=\"contribution\">\n<div class=\"authors 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href=\"https:\/\/scholar.google.com\/scholar_lookup?title=Descriptive%20study%20of%20COVID-19%C2%A0outbreak%20among%20passengers%20and%20crew%20on%20Diamond%20Princess%20cruise%20ship%2C%20Yokohama%20Port%2C%20Japan%2C%2020%C2%A0January%20to%209%C2%A0February%202020&amp;publication_year=2020&amp;author=T.%20Yamagishi&amp;author=H.%20Kamiya&amp;author=K.%20Kakimoto&amp;author=M.%20Suzuki&amp;author=T.%20Wakita\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0260\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0265\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0265\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span class=\"anchor-text-container\"><span 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rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0265\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">View in Scopus<\/span><\/span><\/a><a class=\"anchor link anchor-primary\" href=\"https:\/\/scholar.google.com\/scholar_lookup?title=An%20outbreak%20of%20Covid-19%20on%20an%20aircraft%20carrier&amp;publication_year=2020&amp;author=M.R.%20Kasper&amp;author=J.R.%20Geibe&amp;author=C.L.%20Sears&amp;author=A.J.%20Riegodedios&amp;author=T.%20Luse&amp;author=A.M.%20Von%20Thun\" target=\"_blank\" rel=\"noopener noreferrer\" aria-describedby=\"ref-id-sbref0265\"><span class=\"anchor-text-container\"><span class=\"anchor-text\">Google Scholar<\/span><\/span><\/a><\/div>\n<\/li>\n<li><span class=\"label u-font-sans\"><a id=\"ref-id-bib0270\" class=\"anchor anchor-primary\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0001407922002412#bbib0270\" data-aa-button=\"sd:product:journal:article:location=references:type=anchor:name=citation-name\"><span 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Mtsi<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 L\u2019Institut de recherche biom\u00e9dicale des arm\u00e9es (IRBA), largement impliqu\u00e9 dans la recherche sur le SARS-CoV-2, a cofond\u00e9 le r\u00e9seau sentinelle Ob\u00e9pine charg\u00e9 de d\u00e9tecter, de qualifier et de quantifier le g\u00e9nome du virus dans les eaux us\u00e9es en France. Durant cette pand\u00e9mie, l\u2019\u00e9pid\u00e9miologie bas\u00e9e sur les eaux us\u00e9es s\u2019est av\u00e9r\u00e9e \u00eatre un outil de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2237,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","doc_tag":[],"class_list":["post-2244","docs","type-docs","status-publish","hentry","no-post-thumbnail"],"acf":[],"_links":{"self":[{"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/docs\/2244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/comments?post=2244"}],"version-history":[{"count":1,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/docs\/2244\/revisions"}],"predecessor-version":[{"id":5982,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/docs\/2244\/revisions\/5982"}],"up":[{"embeddable":true,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/docs\/2237"}],"wp:attachment":[{"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/media?parent=2244"}],"wp:term":[{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/sahelib.atatec-design.com\/index.php\/wp-json\/wp\/v2\/doc_tag?post=2244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}