Figure 3:

Cumulative (A) and daily (B) number of individuals tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the proportion of individuals tested positive over time by outbreak setting in the Greater Toronto Area (GTA). The calendar date refers to the date when the specimen was collected. The rest of the population excludes long-term care home (LTCH) residents and people using shelters (defined as individuals who had an indication of “homelessness” in Ontario Laboratories Information System [OLIS]). For individuals with multiple tests, we selected 1 testing episode per individual based on the following hierarchy: the earliest testing episode where the individual was confirmed positive for SARS-CoV-2 infection, or their earliest episode where the results were indeterminate, or earliest episode where the individual tested negative.²² We considered individuals with only indeterminate results as positive as most individuals who had indeterminate results tested positive at a later date. Data source: OLIS.