Flu vaccine showdown: 2023 vs 2024 formula tested in small study
Knowledge-focused
Completed
This study looked at how well the 2023 and 2024 flu vaccines protect against influenza A. Researchers gave the 2023 vaccine to 23 healthy adults between May and June 2024, when the vaccine was about to expire, to compare their immune responses with people who got the 2023 vaccine…
Phase: PHASE4 • Sponsor: La Jolla Institute for Immunology • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:05 UTC