The study only examined healthcare workers, “who have higher vaccination rates than the general population, so the findings may overestimate population-level immunity”.
The findings also showed that the immune cells in older people responded better to bird flu, most likely because they have been exposed to more flu variants over time.
STUDY - The Lancet Microbe - Characterisation of immune responses targeting highly pathogenic avian influenza A(H5) viruses in health-care workers in the Netherlands: an observational, cross-sectional analysis - https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(26)00022-4/fulltext
