TABLE 1.
Cumulative risk and risk reduction of SARS-CoV-2 infection for indoor workersa
| Infection control strategy | Shared car transportation | Work shift distancing |
Break in breakroom | Private housing | Daily cumulative riskb |
||
|---|---|---|---|---|---|---|---|
| 1 m | 2 m | 1-m distancing | 2-m distancing | ||||
| Nonec | 0.698 (0.356 to 0.955) | 1.00 (0.983 to 1.00) | 0.530 (0.246 to 0.850) | 0.024 (0.009 to 0.058) | None | 1.00 (0.995 to 1.00) | 0.865 (0.571 to 0.992) |
| Handwashing and surface disinfectiond | No | 1.00 (0.00%) | 0.426 (19.7%) | No | None | 1.00 (0.00%) | 0.833 (3.78%) |
| Cloth maskd | 0.163 (76.7%) | 0.866 (13.4%) | 0.148 (72.0%) | No | None | 0.896 (10.4%) | 0.303 (65.0%) |
| Surgical maskd | 0.108 (84.5%) | 0.749 (25.1%) | 0.076 (85.7%) | No | None | 0.785 (21.5%) | 0.186 (78.6%) |
| Double maskd | 0.025 (96.4%) | 0.332 (66.8%) | 0.025 (95.3%) | No | None | 0.378 (62.2%) | 0.058 (93.3%) |
| Increased air exchanged | 0.126 (81.9%) | 0.904 (9.64%) | 0.081 (84.7%) | 0.004 (81.7%) | None | 0.923 (7.74%) | 0.217 (75.0%) |
The table shows the cumulative risk and risk reduction (%) of SARS-CoV-2 infection for a susceptible indoor produce worker exposed to an infected co-worker. “No” indicates that the infection control strategy was not applied (see Methods). “None” means that there was no risk of infection in the private housing scenario. SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
Assuming there is contact between an infected and susceptible individual in every environmental scenario except for private housing.
The values represent median (95% uncertainty interval) SARS-CoV-2 infection risk.
The values represent median (% reduction) SARS-CoV-2 infection risk compared to no infection control strategy.