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Calgary Health Zone

Canadian COVID-19 Cohort Study (CCCS): Study of the epidemiology of COVID-19 in Canadian healthcare workers

Join a research study about COVID-19 in Canadian hospital workers

Status: Currently enrolling Click here to join Already a participant? Click here to log in

What is being studied?
    • The rate of COVID-19 infection
    • Risk factors for infection (occupational and community)
    • Antibody levels over time
    • Uptake of vaccines against COVID-19
    • Psychological impact of working during a pandemic

Who can participate?
STAFF working at an acute care, rehabilitation, or complex care hospital in the Calgary Health Zone:
    • Who are 18-75 years of age
    • Who work anywhere in the institution for more than 20 hours per week 
OR - is a physician, nurse practitioner, or midwife with an independent practice who cares for patients 8 hours or more per week in the institution
    • Who have access to a computer or phone with internet access, and
    • Who plan to be available at least for the next 3 months

What is required?
    • Questionnaires when you join and then every week (online)
    • When (if) tested for COVID-19: report results, symptoms, and contact with ill people (online)
    • Self-collect blood spot samples:

  1. when you join, in 6 months, and at the end of the study;
  2. if you test positive for COVID-19: 30 days after your test; and
  3. before receiving each dose of COVID-19 vaccine and again 30 days after your final dose


Participation is voluntary
Participants will be provided with a small token of appreciation for taking part in the study.

People are welcome to join whether or not they have been vaccinated against COVID-19.

If you have questions, please email COVID.study@sinaihealth.ca or call (416) 294-6383 or, if long distance charges apply 1-888-307-3357 weekdays between 6AM and 4PM GMT (8AM - 6PM EST).

Site Investigator: Dr. Otto Vanderkooi

Click here to join Already a participant? Click here to log in

Information Sheet and Consent Form