Flu Season 2025-25. Seasonal flu vaccination is a critically important public health intervention to reduce morbidity and mortality in those most at risk including older people, pregnant women and. In the uk the live attenuated influenza vaccine (laiv) moved to a trivalent formulation in time for the 2025 to 2025 season.
In the uk the live attenuated influenza vaccine (laiv) moved to a trivalent formulation in time for the 2025 to 2025 season. Public health service (usphs) requirements for the 2025โ2025 influenza season and is formulated to contain 45 micrograms.