Figure 1:

Cumulative COVID-19 cases and policy measures by province, Mar. 11–31, 2020. This figure focuses on a subset of our study period that begins when the World Health Organization declared COVID-19 to be a pandemic, cases began to increase in Canada and provincial governments began introducing widespread social distancing measures. Cumulative cases per 10 000 population are visually represented as a 3-day rolling average. Case data were obtained from the Government of Canada’s COVID-19 database.²⁰ AB = Alberta, BC = British Columbia, CAN = Canada, COVID-19 = coronavirus disease 2019, MB = Manitoba, NB = New Brunswick, NL = Newfoundland and Labrador, NS = Nova Scotia, ON = Ontario, PE = Prince Edward Island, QC = Quebec, SK = Saskatchewan.