Providing a blood sample at home

Thank you for your participation in the COVID-19 Antibody Study. You have been asked to participate by providing a blood sample at home using a self-collection kit. Watch the video to learn how to collect and return your blood sample to the CLSA.


Here is what your participation involves:

  • You will receive a package via Fedex or Canada Post that will include detailed information about how to self-collect a blood sample. Briefly, the process requires you to prick a finger, allow a blood drop to form, and then apply the drop of blood to a device that has a special paper. Once the blood sample has been collected, the device is sent back to the research team for analysis via pre-paid Fedex or Canada Post envelope.
  • You will be asked to complete a short questionnaire on the same day you self-collect the blood sample. The questionnaire may be completed online or by telephone.
  • Results of the antibody test will be made available to you after your blood sample has been analysed. 
  • You may be contacted again in approximately six months to arrange for a second blood sample collection.

For questions about the study please contact the CLSA toll-free at 1-866-999-8303 or

For more information: