Fig. 3

Cost-effectiveness plane derived from 500 independent Monte-Carlo simulations for different testing scenarios with the associated 95% credible ellipse of the data point distributions. Colors correspond to testing only severe cases (black dot); SP1 in workplaces without a confirmatory test (blue); SP2 in workplaces with a confirmatory RT-PCR test (orange); and SP3 in workplaces with a confirmatory RA test (red). Screening programs were implemented for 50% of workplaces with a size of 50+ employees. The booster vaccination among adults aged 18–64 years was set to reported coverage as of April 1, 2022 [status quo] (A1−A5); an increase of 20% over status quo (B1–B5); and an increase of 80% over status quo (C1–C5). Comparison was done between the baseline for testing only severe cases (TOSC) and each of the screening programs with the same booster coverage. Costs are in 2021 Canadian dollars