Table 1.
Recent studies assessing the presence of SARS-CoV-2 in wastewater samples.
| Reference | Region of study | Genes analyzed | Outcomes |
|---|---|---|---|
| Kumar et al. (2020) | Ahmedabad, India | ORF1ab, N and S | 2/2 influent water samples - Positive 2/2 effluent water samples - Negative |
| Sherchan et al. (2020) | Louisiana, USA | N1 and N2 | 2/15 raw wastewater samples - Positive All effluent water samples - Negative |
| Randazzo et al. (2020) | Valencia, Spain | N1, N2 and N3 | 35/42 influent water samples - Positive 2/18 secondary treated water samples - Positive 0/12 tertiary effluent water samples - Positive |
| Nemudryi et al. (2020) | Bozeman, Montana, USA | N1 and N2 | 7/7 samples - Positive in March/April 2020 |
| Wu et al. (2020) | Massachusetts, USA | N1, N2 and N3 | 10/10 raw wastewater samples - Positive |
| Istanbul, Turkey | RdRp | 9/9 sludge samples – Positive | |
| Haramoto et al. (2020) | Yamanashi Prefecture, Japan | N1 and N2 | 0/5 influent samples – Positive 1/5 secondary effluent samples – Positive 0/3 river water samples – Positive |