Flu 2025 Vision. For more than a decade, the annual flu shot has protected against four types of the influenza virus โ but this year, that has changed. The aivc recommendation for the composition of influenza vaccines for australia in 2025 differs from the 2024 southern hemisphere and 2024/25 northern hemisphere.
New flu data from the southern hemisphere suggests this yearโs vaccine isn’t as effective against severe illness as previous iterations, a finding that may not bode well for. Recommendations for the composition of influenza virus vaccines for use in the 2025 southern hemisphere influenza season;