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Report an adverse event or product complaint

Managing marketed health product-related side effects depends on healthcare professionals and patients reporting them. Any serious or unexpected side effects in patients receiving a Moderna vaccine should be reported to your local Health Unit.

If a patient experiences a side effect following immunization, please complete the Adverse Events Following Immunization (AEFI) Form appropriate for your province/territory and send it to your local Health Unit.

In addition, you can report side effects to Moderna at Adverse Event Intake Portal or by calling

1-866-MODERNA (1-866-663-3762).

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