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Post-lockdown detection of SARS-CoV-2 RNA in the wastewater of Montpellier, France

By Julie Trottier, Regis Darques, Nassim Ait Mouheb, Emma Partiot, William Bakhache, Maika S Deffieu, Raphael Gaudin

Posted 09 Jul 2020
medRxiv DOI: 10.1101/2020.07.08.20148882

The evolution of the COVID-19 pandemic can be monitored through the detection of SARS-CoV-2 RNA in sewage. Here, we measured the amount of SARS-CoV-2 RNA at the inflow point of the main waste water treatment plant (WWTP) of Montpellier, France. We collected samples 4 days before the end of lockdown and up to 45 days post-lockdown. We detected increased amounts of SARS-CoV-2 RNA at the WWTP, which was not correlated with the number of newly diagnosed patients. Future epidemiologic investigations may explain such asynchronous finding.

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