Immediate reporting of specific events following AstraZeneca/ COVISHIELD COVID-19 vaccines

May 14, 2021

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To: Local Health System Partners


Enhanced surveillance and immediate reporting of specific adverse events associated with AstraZeneca/COVIDSHIELD COVID-19 vaccines.

As part of enhanced COVID-19 vaccine surveillance for adverse events following immunization (AEFI), the Public Health Agency of Canada and Public Health Ontario have requested the expedited reporting of specific events following the AstraZeneca/COVIDSHIELD vaccines.

The following required actions will ensure timely assessment of adverse events associated with these vaccines.

If feasible, please provide information on the client’s platelet count and results of any recent COVID-19 testing.

If you are unsure whether to report an AEFI, be proactive and report the event.

How to Report

As you are aware, all AEFIs are reportable to Public Health. Please continue to report all AEFIs by using the AEFI form and your usual business practices. Please contact the Immunization Program at 705.522.9200, ext. 458 for any questions related to vaccines and/or AEFI reporting.


Original Signed By

Dr. Penny Sutcliffe
Medical Officer of Health and Chief Executive Officer

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This item was last modified on May 24, 2024