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Underestimation of SARS-CoV-2 in wastewater due to single or double mutations in the N1 qPCR probe binding region

2024-02-04 epidemiology Title + abstract only
View on medRxiv
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Wastewater surveillance using RT-qPCR has now been widely adopted to track circulating levels of SARS-CoV-2 virus in many sewer sheds. The CDC qPCR assays targeting two regions (N1 and N2) within the N gene are commonly used, but a discrepancy between the two biomarkers has been noticed by many groups using this method since late 2021. The reason is presumed to be due to mutations in regions targeted by the qPCR probe. In this study, we systematically investigated and unequivocally confirmed tha...

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