Flu 2024 Symptoms Uk 2024.  — in the uk the live attenuated influenza vaccine (laiv) will move to a trivalent formulation in time for the 2024 to 2025 season.  — this report describes influenza activity observed in the uk in the period generally from week 40 2023 (week ending 8 october 2023) to week 14 2024 (week ending 7 april 2024).

 — vaccinating health and care workers also plays an important role in helping to prevent transmission of flu, protecting themselves and those they care for. 2023 to 2024 season national.