Type of virus isolated
| Study arm | hMPV | Rhino | Influenza B virus | hMPV & rhino | Influenza B virus & rhino | Total |
|---|---|---|---|---|---|---|
| Medical masks arm | 1 | 16 | 1 | 1 | 0 | 19 |
| Cloth mask arm | 4 | 26 | 0 | 0 | 1 | 31 |
| Control arm | 2 | 16 | 0 | 0 | 0 | 18 |
| Total | 7 | 58 | 1 | 1 | 1 | 68 |
hMPV, human metapneumovirus; Rhino, rhinoviruses.