Summary of NACI statement of May 3, 2024: Guidance on the use of COVID-19 vaccines during the fall of 2024

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Organization: Public Health Agency of Canada

Date published: 2024-05-03
Cat.: HP5-159/2-2024E-PDF
ISSN: 978-0-660-71364-9
Pub.: 240044

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On May 3, 2024, the Public Health Agency of Canada (PHAC) released the National Advisory Committee on Immunization's (NACI) Guidance on the use of COVID-19 vaccines during the fall of 2024. This guidance is based on current evidence and NACI expert opinion.

Beginning in the fall of 2024, NACI recommends the following for the use of the most recently updated COVID-19 vaccines:

NACI will continue to monitor the evolving evidence and will update guidance as needed.

For the full statement, including supporting evidence and rationale, please see NACI's Guidance on the use of COVID-19 vaccines during the fall of 2024.

What you need to know

For more information on NACI's recommendations on the use of COVID-19 vaccines, please refer to the COVID-19 vaccines chapter in the Canadian Immunization Guide (CIG), as well as additional statements on the NACI web page.


"With its most recent statement, NACI is providing guidance to facilitate fall vaccine program planning. The committee emphasizes the benefits of available vaccines for COVID-19 protection, and particularly for those most at risk of severe illness, as we know that protection against severe illness due to COVID-19 can wane over time. An updated COVID-19 vaccine formulation may also be available by the fall that would better target the currently circulating strains."

Dr. Robyn Harrison, NACI Chair

"I would like to thank NACI for providing this guidance to help plan for COVID-19 vaccine programs in the fall. Vaccination remains one of our most effective tools in protecting ourselves and our communities from COVID-19. With our experience from previous years, we know there is potential for increased impact of COVID-19 activity during the fall and winter months when other respiratory viruses such as influenza and RSV are circulating. An additional dose using the latest vaccine formulation, layered with personal protective practices, will continue to be important this fall to increase protection especially for those most at risk of COVID-19 infection or severe disease in our communities"

Dr. Theresa Tam, Chief Public Health Officer

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