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Influenza (Flu) 2024-2025

Updated:  September 20, 2024

The Ministry of Health (MOH) provides influenza vaccine through the Universal Influenza Immunization Program (UIIP). Vaccine Distribution will begin in early October for high-risk populations including hospitals, long-term care homes, and retirement residences.

Other settings, such as primary care offices, pharmacies, and all other providers can expect to receive flu vaccine in mid-October. The initial amount health care providers receive will be based on amounts administered during the previous flu season, and more can be ordered throughout the season. During the month of October, influenza vaccine should be prioritized for individuals at high-risk of complications or hospitalization due to influenza, health care providers and essential caregivers. Immunization of the general population can begin October 28, 2024.

Information about this season’s influenza vaccine products and eligibility, and additional supporting information can found at the Ontario Ministry of Health Universal Influenza Immunization Program.

Supporting Resources:

Co-Administration

All available influenza vaccines (i.e., QIV-HD, TIV-adj, and QIV) may be given at the same time with other vaccines, or at any time before or after, other vaccines, including COVID-19 vaccine. Administration of COVID-19 vaccines may occur concurrently with (i.e., same day), or at any time before or after seasonal influenza immunization for those aged 6 months and older.

There are no direct studies on the co-administration of Shingrix with Fluad (TIV-adj) or Fluzone High-Dose Quadrivalent (QIV-HD). With Fluad, it is unknown how the adjuvants may interact when Shingrix is co-administered. If given by injection at the same time, separate limbs should be used if possible. Alternatively, the injections may be administered into the same muscle separated by at least 2.5 cm (1”).

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