Surveillance of SARS-CoV-2 RNA in wastewater matrix: a review

The National Wastewater Surveillance System (NWSS): From inception to widespread coverage, 2020–2022, United States

“…Third, NWSS is developing guidance for partners to implement standardized approaches to wastewater sampling, processing, testing, and data submission. Initially, NWSS sites had the flexibility to use a variety of different methods ( Beattie et al, 2022 ; Dimitrakopoulos et al, 2022 ; Mogili et al, 2023 ; Barril et al, 2021 ; Ahmed et al, 2022 ; Michael-Kordatou et al, 2020 ), which helped facilitate the rapid expansion of NWSS. However, by shifting to a more standardized approach to wastewater surveillance, NWSS data will be more readily comparable across sites and time.…”