COVID-19 studies for hospital and healthcare staff (CCS & CCCS)
Status: Enrolment complete, thank you
Study Results
French site
What is the purpose of the study?
The COVID-19 Cohort Study (CCS) and the Canadian CCS (CCCS) are following staff to December 2023 to find out the rate of COVID-19 infection, antibody levels over time, the impact of vaccines against COVID-19, and the psychological impact of working during a pandemic.
How long will the study last?
The study will last until December 2023.
Who was asked to participate:
People working in an acute care, rehabilitation, or complex care hospital who:
- were 18 to 75 years old
-
worked anywhere in the hospital for at least 20 hours per week
- OR was a MD/NP with privileges who spends 8 hours or more per week in the hospital
- was available for at least 3 months (not retiring or going on leave), and
- had convenient access to a computer or a cell phone with internet access (to complete surveys and receive information about the study)
What did they need to do?
- An online survey at enrolment to assess current risk factors
- Short online surveys every week about whether they had any symptoms
- When tested for COVID-19: complete an illness report to inform the study of test results, symptoms, and contact with people who may have been ill
- Self-collect blood samples: 30 days after vaccination, 30 days after testing positive for COVID-19, and every 6 months after the more recent of these two. NOTE: The results are shared with participants, but it takes up to 6 months for results to be returned
- For Toronto-area sites: others in the household could consent to participate
Voluntary participation
Participants were provided with a small token of appreciation for taking part in the study
Thank you to our funders: CIHR: Canadian Institutes of Health Research, Weston Foundation, Physicians’ Services Inc., & COVID-19 Immunity Task Force
Participating sites | Investigators | |
---|---|---|
Ontario | ||
Toronto & area | Oak Valley Health | Dr. Jeya Nadarajah |
Michael Garron | Dr. Jeff Powis & Dr. Chris Kandel | |
North York General | Dr. Kevin Katz | |
Private MD, NP, or midwifery clinics/practices in the GTA | Dr. Brenda Coleman | |
Sinai Health | Dr. Allison McGeer & Dr. Brenda Coleman | |
Sunnybrook Health Sciences Centre | Dr. Samira Mubareka | |
Unity Health (St. Michael’s site) | Dr. Matthew Muller | |
University Health Network | Dr. Allison McGeer | |
William Osler Health System | Dr. Saranya Arnoldo | |
Hamilton | Hamilton Health Sciences | Dr. Mark Loeb |
St. Joseph’s Healthcare Hamilton | Dr. Marek Smieja | |
Ottawa | Ottawa | Dr. Curtis Cooper |
Alberta | ||
Calgary | Calgary Health Zone | Dr. Robyn Harrison |
Edmonton | Grey Nuns Community Hospital (Edmonton) | Dr. Robyn Harrison |
University of Alberta Hospital | Dr. Robyn Harrison | |
Royal Alexandra Hospital | Dr. Robyn Harrison | |
Nova Scotia | ||
IWK Health | Dr. Joanne Langley | |
Nova Scotia Health | Dr. Shelly McNeil | |
Quebec | ||
Sherbrooke | Dr. Louis Valiquette |