Table 1.
Overview of selected SARS-CoV2 studies in wastewater conducted in 2020.
| Study region | Genetic traces/genes analysed | Results | Reference |
|---|---|---|---|
| Paris (France) | RdRp | Samples in three WWTPs positive between 5th March and 23th April | Wurtzer et al., 2020 |
| Milan and Rome (Italy) | ORF1ab, S | 6 out of 12 samples positive in raw wastewater | La Rosa et al., 2020 |
| Netherlands | N1, N2, N3, E | 4 out of 7 wastewater samples positive at the beginning of March. 9 out 9 wastewater samples positive in the middle of March | Medema et al., 2020 |
| Milan (Italy) (WWTP and river) | ORF1ab, N, E | First sampling: 3 out of 4 raw wastewater samples positive 2 out of 2 effluent samples negative 2 out of 2 river samples positive |
Rimoldi et al., 2020 |
| Brisbane (Australia) | N and confirmation via Sanger and MiSeq Illumina sequencing | 2 out of 9 samples positive in raw wastewater | Ahmed et al., 2020 |
| Massachusetts (USA) | N1, N2, N3, | 10 out of 10 raw wastewater samples positive | F. Wu et al., 2020 |
| Israel (different cities and facilities) | E | 2 out of 15 samples positive in March 2020 9 out of 11 samples positive in April 2020 |
Bar Or et al., 2020 |
| Bozeman, Montana (USA) | N1, N2 | 7 out of 7 positive in March/April 2020 | Nemudryi et al., 2020 |
| Istanbul (Turkey) | RdRp | 9 out of 9 sludge samples positive | Kocamemi et al., 2020 |
| Valencia (Spain) | N1, N2, N3 | 35 out of 42 influent samples positive 2 out of 18 secondary treated samples positive 0 out of 12 tertiary effluent samples positive |
Randazzo et al., 2020 |
| Yamanashi Prefecture, Japan | N1, N2 | None of 5 influent samples positive 1 out of 5 secondary effluent samples positive None out of 3 river water samples positive |
Haramoto et al., 2020 |
| Ahmedabad, Gujara, India | ORF1ab, N and S | 2 out of 2 influent samples positive 2 out 2 effluent samples negative |
Kumar et al., 2020 |
| Louisiana, USA | N1 and N2 | 2 out of 15 raw wastewater samples positive Effluent samples all negative |
Sherchan et al., 2020 |
| Quito, Ecuador | N1 and N2 | 3 out of 3 river water samples positive | Guerrero-Latorre et al., 2020 |