Table 2:
Summary of the Canadian baseline and varying levels of public health interventions applied in the 4 scenarios studied
| Intervention type | Scenarios and varying levels of public health interventions applied (May 11, 2020, to Jan. 7, 2022) | ||||
|---|---|---|---|---|---|
| Canadian baseline (Feb. 7 to May 10, 2020) | Minimal control (no change to interventions once closures are lifted and physical distancing not maintained) | Maintained physical distancing | Enhanced case detection and contact tracing | Combined interventions | |
| Case detection and isolation | 20% detected and isolated (50% household co-isolate) | 20% detected and isolated (50% household co-isolate) | 20% detected and isolated (50% household co-isolate) | 50% detected and isolated* (50% household co-isolate) | 50% detected and isolated* (50% household co-isolate) |
| Contact tracing and quarantine | 50% of 20% cases detected traced and quarantined | 50% of 20% cases detected traced and quarantined | 50% of 20% cases detected traced and quarantined | 100% of 50% cases detected traced and quarantined* | 100% of 50% cases detected traced and quarantined* |
| Physical distancing (reducing daily contact rate) | 20% reduction in contact rate for 8 weeks (Mar. 16 to May 10, 2020) | NA | 20% reduction in contact rate maintained* | N/A | 20% reduction in contact rate maintained* |
| Community closure | 100% schools, 40% workplaces, 50% mixed-age venues closed for 8 weeks only (Mar. 16 to May 10, 2020) | NA | NA | NA | NA |
Note: NA = not applicable.
*
Interventions that have been enhanced or maintained from the baseline scenario.