Report an adverse reaction to a vaccine: health care provider

Health care providers who suspect an adverse reaction (side effect) to a vaccine are strongly encouraged to report it. Talk to your patients about signs to watch for.

If you are a health care professional who works in a hospital, there are new mandatory reporting rules and a different form that you will need to use to report. Check with your administration to learn about any new requirements for your specific hospital.

Report a side effect

To mail your report to a Canada Vigilance Regional Office, use the postage paid label.

If you are reporting as part of a provincially regulated immunization program, please contact the Public Health Agency of Canada .

What is a vaccine

Vaccines are products that produce immunity to a specific disease. Most vaccines are given by injection (needle) but some are given orally (by mouth) or nasally (sprayed into the nose).

They protect people against serious and potentially deadly diseases, such as diphtheria, measles, polio and tetanus.

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