Table 5.
COVID-19 infection risk in four example environments for five scenarios. The index subject is assumed to be either super infectious (10× higher viral load) or a super emitter (10× higher aerosol emission rate). Unit: percent per episode. The individual risk is that of a particular person being infected, the group risk refers to that of at least one person in the group.
| Environment | Scenario A VR 0.35 hr−1 |
Scenario B VR 2 hr−1 |
Scenario C Masks, 70% Efficiency |
Scenario D Masks, 95% Efficiency |
Scenario E High-Vol VR 9 hr−1 |
|---|---|---|---|---|---|
| 1.1. Office individual risk |
88 | 53 | 20 | 3.7 | 19 |
| 1.2. Office group risk |
100 | 90 | 50 | 11 | 46 |
| 2.1. Classroom individual risk (>10 years) |
65 | 32 | 11 | 1.9 | 9.7 |
| 2.2. Classroom group risk (>10 years) |
100 | 100 | 94 | 37 | 91 |
| 3.1. Choir practice individual risk |
97 | 73 | - | - | 30 |
| 3.2. Choir practice group risk |
100 | 100 | - | - | 100 |
| 4.1. Reception individual risk |
36 | 15 | 4.7 | 0.8 | 4.2 |
| 4.2. Reception group risk |
100 | 100 | 99 | 55 | 99 |