Table 2.
Number of studies, number of collected samples, number of positive samples and percentage of positive samples in the reviewed studies per sampling location. The sampling locations were divided into two main groups: hospital setting and non-hospital setting.
| Sampling location | No. studies | No. collected samples | No. Positive samples (% positive samples) |
|---|---|---|---|
| Hospital setting | |||
| Total | 26 | 3077 | 533 (17.3) |
| COVID-19 isolation ward | 14 | 1558 | 377 (24.2) |
| ICU ward | 3 | 273 | 13 (4.8) |
| Other hospital areas (e.g. cross section) |
9 | 1246 | 143 (11.5) |
| Non-hospital setting | |||
| Total | 13 | 1724 | 174 (10.1) |
| Transport (train, bus ferryboat, ship) | 4 | 655 | 82 (12.5) |
| Quarantine hotel rooms | 4 | 531 | 39 (7.3) |
| Public spaces | 3 | 406 | 37 (9.1) |
| Long-term care facilities (e.g. nursing homes) |
2 | 110 | 12 (10.9) |
| Diagnostic laboratory | 1 | 22 | 4 (18.2) |