A new peer-reviewed study evaluating the rollout of mass pediatric flu vaccination across an entire Spanish health region (~400,000 people) found NO statistically significant reduction in flu cases or hospitalisation ations after authorities expanded flu shots to children 6 months to 5 years old.

Researchers analyzed 6,804 primary care influenza diagnoses and 3,252 influenza-related hospitalizations between 2018 and 2025, comparing seasons before and after the pediatric flu shot program began in 2023.

In plain English: the flu shots did not meaningfully lower flu rates in young children. Kids under 5 were no less likely to show up at the doctor with the flu or end up hospitalized than expected after the rollout. In other words, the program failed to produce a measurable real-world benefit in the exact age group it was designed to protect.

Study of an ENTIRE Spanish region (~400,000 people) found NO reduction in flu cases or hospitalizations after mass flu shot rollout to children 6 months to 5 years old.

LINK TO DETAILS:https://open.substack.com/pub/petermcculloughmd/p/breaking-study-finds-pediatric-flu?r=1dbkwf&utm_medium=ios