Index/Organizations/Joint Committee on Vaccination and Immunisation

Joint Committee on Vaccination and Immunisation

UK government advisory group

Fact-Checks

5 results

Dec 11, 2025

How do vaccine effectiveness estimates for this season’s flu vaccine compare to previous years in the UK?

This season’s early UK data show the 2025/26 vaccine is providing strong protection in children (estimated 70–75% effective at preventing hospital attendance for ages 2–17) and more modest protection ...

Dec 12, 2025

How effective are quadrivalent versus trivalent flu vaccines for the strains circulating in the UK this season?

The UK has shifted its national programme from quadrivalent to trivalent influenza vaccines because WHO and EU/UK advisers judge B/Yamagata absent since March 2020; all vaccines marketed for 2025–26 i...

Dec 2, 2025

What are the common and rare side effects of the 2025 Covid vaccine in people over 65 in the UK?

Most UK sources and international public-health summaries say common side effects after recent COVID‑19 vaccines in older adults are mild and short‑lived — arm soreness, fatigue, fever, headache and m...

Dec 31, 2025

What were effectiveness estimates for egg-based vs cell-based H3N2 vaccines in 2025-2026 by age group?

Mid‑season and manufacturer real‑world reports for 2025–26 indicate a modest but consistent relative advantage for cell‑culture (and other non‑egg) H3N2 vaccine products over egg‑based vaccines in mos...

Dec 17, 2025

Which influenza A and B strains were recommended for the 2025-26 UK seasonal vaccine?

For the UK 2025–26 seasonal influenza programme, manufacturers followed WHO advice to make trivalent vaccines containing two influenza A strains (H1N1 and H3N2) plus a single influenza B (Victoria) st...