Q: I’ve heard that the AstraZeneca vaccine can cause blood clots. Is this true?

 A: Serious side effects as a direct result of vaccination are extremely rare. Dr. Bonnie Henry, Provincial Health Officer, said today there are many factors that might cause someone to have a blood clot, and the Province is monitoring data worldwide as well as here in Canada to see if any adverse reactions are caused by any of the vaccines approved for use. Of more than 17 million doses of AstraZeneca received by people around the world, 37 cases of blood clots have been identified, which translates to 0.000218 per cent. Dr. Henry said that any risk associated with contracting COVID-19 far outweighs any theoretical risk with the vaccines, and that the vaccines offered in Canada are safe and effective.

This page last updated Mar 16, 2021 5:39pm PDT