Table 2.
Number of reviewed studies for each indicator at each region.
| North America | South America | Africa | Europe | Asia | Oceania | Global detection rate | ||
|---|---|---|---|---|---|---|---|---|
| AdV | Raw wastewater | 7 | 2 | 2 | 13 | 3 | 5 | 94% (772/823) |
| Treated wastewater | 10 | 7 | 2 | 13 | 3 | 3 | 86% (1223/1436) | |
| Surface freshwater | 4 | 5 | 4 | 7 | 4 | 0 | 65% (835/1283) | |
| Groundwater | 1 | 2 | 0 | 1 | 1 | 0 | 65% (40/62) | |
| Seawater | 2 | 6 | 0 | 4 | 0 | 0 | 60% (229/381) | |
| Total | 13 | 16 | 5 | 20 | 5 | 4 | 76% (3099/3985) | |
| PyV | Raw wastewater | 5 | 5 | 1 | 7 | 2 | 3 | 93% (542/581) |
| Treated wastewater | 6 | 5 | 1 | 6 | 2 | 2 | 68% (608/892) | |
| Surface freshwater | 1 | 2 | 0 | 6 | 2 | 0 | 52% (326/631) | |
| Groundwater | 0 | 0 | 0 | 1 | 0 | 0 | 48% (10/21) | |
| Seawater | 4 | 0 | 0 | 2 | 2 | 1 | 24% (83/350) | |
| Total | 9 | 7 | 1 | 10 | 4 | 3 | 63% (1569/2475) | |
| AiV | Raw wastewater | 5 | 0 | 0 | 0 | 4 | 0 | 91% (92/101) |
| Treated wastewater | 5 | 0 | 0 | 1 | 3 | 0 | 74% (184/250) | |
| Surface freshwater | 2 | 0 | 0 | 1 | 3 | 0 | 33% (77/236) | |
| Groundwater | 1 | 0 | 0 | 0 | 0 | 0 | 55% (26/47) | |
| Seawater | 0 | 0 | 0 | 0 | 0 | 0 | NA | |
| Total | 6 | 0 | 0 | 1 | 6 | 0 | 60% (379/634) | |
| PMMoV | Raw wastewater | 6 | 0 | 1 | 1 | 2 | 1 | 100% (110/110) |
| Treated wastewater | 6 | 0 | 1 | 1 | 2 | 0 | 99% (135/137) | |
| Surface freshwater | 2 | 0 | 0 | 1 | 4 | 0 | 87% (278/319) | |
| Groundwater | 1 | 0 | 0 | 0 | 0 | 0 | 72% (18/25) | |
| Seawater | 1 | 0 | 0 | 0 | 0 | 1 | 55% (45/82) | |
| Total | 7 | 0 | 1 | 1 | 5 | 1 | 87% (586/673) | |
| Bacteroides phages | Raw wastewater | 2 | 2 | 0 | 14 | 2 | 0 | 97% (531/549) |
| Treated wastewater | 0 | 1 | 0 | 8 | 1 | 0 | 75% (911/1216) | |
| Surface freshwater | 2 | 1 | 0 | 4 | 1 | 0 | 66% (280/427) | |
| Groundwater | 0 | 0 | 0 | 3 | 0 | 0 | 38% (48/127) | |
| Seawater | 0 | 0 | 0 | 3 | 0 | 0 | 42% (43/102) | |
| Total | 3 | 2 | 0 | 19 | 2 | 0 | 72% (1741/2421) | |
| FRNAP (II/III) | Raw wastewater | 0 | 0 | 0 | 1 | 3 | 0 | 73% (96/132) |
| Treated wastewater | 0 | 0 | 0 | 1 | 4 | 0 | 81% (219/270) | |
| Surface freshwater | 0 | 0 | 0 | 2 | 5 | 0 | 59% (375/634) | |
| Groundwater | 0 | 0 | 0 | 0 | 1 | 0 | 0% (0/10) | |
| Seawater | 0 | 0 | 0 | 0 | 0 | 0 | NA | |
| Total | 0 | 0 | 0 | 3 | 8 | 0 | 66% (690/1046) | |