Table 1.
Included studies by population of interest
| Population | Number of studies |
|---|---|
| Migrants | 13 (14 publications) |
| HIV | 10 |
| Contacts | 5 |
| Immunocompromised | 7 |
| Healthcare workers | 5 |
| Other high-risk populations | 3 |
| Children | 2 |
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