The COVID-19 Occupational Risks, Seroprevalence and Immunity among Paramedics (CORSIP) project seeks to identify COVID19-related occupational risks to paramedics and develop recommendations to protect paramedic health


We are still welcoming new participants, even if you have been vaccinated!

We have performed additional confirmatory testing on all 1st blood samples. For a very small number of participants, your results may change. This will also allow for an antibody level to be given for the first sample. A “frequently asked questions” section will soon be available to help understand your results.

Please record your vaccine status and any COVID-19 infections in the study Participant Portal. This data is very important to the study results and if it remains incomplete you may be contacted by a study team member to confirm it.

When can I expect my next blood sample results? Samples are being tested the week of Sept 20, 2021 and we estimate results will take 2 weeks. Please check the study Participant Portal for a collection date if you want to make sure we have received your sample (please note that samples can take 2 – 4 weeks to arrive). Samples received after the above testing date will be sent for the next round of testing. Testing frequency will occur every 2 – 3 weeks.

When should I complete the study blood tests? If you haven’t completed your first blood test, please do so ASAP! Please complete 3 blood tests (spaced as evenly as possible) over the study period, with the last blood sample timed for January or February 2022 (the study ends Feb 28/22). For vaccinated participants, we would like one of your blood tests to be performed at 6 months from your first vaccine date. Please adjust one of your blood tests to line up with this date or, if none of them are close to it, please just provide an additional blood test. If you need help in planning your blood test schedule, please feel free to contact your provincial study coordinator.

Please complete one questionnaire with each blood test. The questionnaires can be found in the study Participant Portal.

Study Coordinators:
Alberta, Saskatchewan, Manitoba & Ontario:
Please contact David O’Neill at
British Columbia:
Please contact Tara Martin at

CORSIP is a study of paramedics in Canada. It aims to recruit 5000 paramedics who will complete surveys and collect blood samples three times over one year.

  • Your blood samples will help us identify how many paramedics have developed antibodies to the virus that causes COVID-19 and how long these antibodies last. These antibodies may be from infection or immunization. Subsequent samples will show if these antibodies are still present. You are eligible whether or not you have been vaccinated, however if you have not been vaccinated please provide your first blood sample prior to vaccination. We will share your personal lab results with you through this study portal!
  • Your survey responses will help us assess the occupational risk of working as a paramedic during the COVID-19 pandemic. We will further investigate workplace factors that increase or decrease paramedics' risk of developing COVID-19.

This project is funded by the COVID-19 Immunity Task Force, as part of a national effort to by the Government of Canada to track spread of the virus in priority populations in Canada.

To find out if you are eligible to participate click here

The study is currently recruiting and we need as many paramedics as possible!
Help us reach our goal of 5,000!

BC - By the numbers

1077 participants enrolled

ON - By the numbers

1289 participants enrolled

AB - 143 participants enrolled

SK - 78 participants enrolled

MB 111 participants enrolled

Total enrolled participants: 2698