This report 43 presents the results of SARS-CoV-2 contamination of wastewater at the entrance of 13 wastewater treatment plants (WWTPs) during the second week of 2021.
During the week 03, the SARS-CoV-2 RNA fluxes in sewage treatment plants were still important, but with a decreasing trend, indicating a medium prevalence of the virus in sewage at national and regional level. Looking at the results of the latest samples analysed, a slight downward trend again seems to be emerging. This now corresponds to an average reduction of about 1.2 log compared to the maximum peak of the current wave. The results will need to be verified in future analyses.
At the level of the treatment plant, similar dynamic patterns were observed, with a decreasing trend for all the plants analysed. For some of them, RT-qPCR signal is approaching to the limit of quantification of our assays.
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Previous reports and more information can be found on the website of LIST.
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