Table 2:

Summary of the Canadian baseline and varying levels of public health interventions applied in the 4 scenarios studied

Intervention typeScenarios 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 distancingEnhanced case detection and contact tracingCombined interventions
Case detection and isolation20% 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 quarantine50% of 20% cases detected traced and quarantined50% of 20% cases detected traced and quarantined50% of 20% cases detected traced and quarantined100% 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)NA20% reduction in contact rate maintained*N/A20% reduction in contact rate maintained*
Community closure100% schools, 40% workplaces, 50% mixed-age venues closed for 8 weeks only (Mar. 16 to May 10, 2020)NANANANA
  • Note: NA = not applicable.

  • * Interventions that have been enhanced or maintained from the baseline scenario.