Table 1:

Screening date, province and inclusion criteria

Period 1Criteria

  • Alberta: Mar. 1–Apr. 7, 2020

  • British Columbia: Mar. 1–Apr. 19, 2020

  • Manitoba: Mar. 1–Apr. 27, 2020

  • New Brunswick: Mar. 1–Apr. 12, 2020

  • Nova Scotia: Mar. 1–Apr. 5, 2020

  • Ontario: Mar. 1–May 13, 2020

  • Quebec: Mar. 1–May 3, 2020

  • Saskatchewan: Mar. 1–Apr. 2, 2020

  • Presenting to the ED meeting WHO clinical criteria for suspected COVID-19:

    • Fever and

    • Respiratory syndrome, including flu-like illness, shortness of breath or cough

  • Presenting to the ED and tested for SARS-CoV-2 in the ED

Period 2Criteria

  • Alberta: Apr. 8, 2020 onward

  • British Columbia: Apr. 20, 2020 onward

  • Manitoba: Apr. 28, 2020 onward

  • Nova Scotia: Apr. 6, 2020 onward

  • New Brunswick: Apr. 13, 2020 onward

  • Ontario: May 14, 2020 onward

  • Quebec: May 4, 2020 onward

  • Saskatchewan: Apr. 3, 2020 onward

  • Tested for SARS-CoV-2 in the ED or within 24 hours of arrival

    • Elective, non-ED admissions excluded

  • Patient presenting to the ED within 14 days of a positive SARS-CoV-2 test and presenting with clinical symptoms of COVID-19.

  • Note: COVID-19 = coronavirus disease 2019, ED = emergency department, SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2, WHO = World Health Organization.