By Nancy Lapid (Reuters) -To receive the full newsletter in your inbox for free sign up here. Older adults exposed to ...

Recommendations on the strain composition of influenza virus vaccines for the 2025-2026 US season have been issued by FDA.

Early flu exposure helps immunity against H5N1 infection, with older adults having stronger antibody responses.

Despite variations by age group and influenza virus type, the 2023-2024 influenza vaccine was protective against outpatient illness in pediatric and adult patients.

Older adults who were exposed to seasonal flu viruses that circulated prior to 1968 are more likely to have some protection against H5N1, and children would benefit more from H5N1 vaccines.

Older adults with early influenza exposure may have antibodies that help fight bird flu, unlike younger individuals who may ...

with a split between influenza A/H3N2 and influenza A/H1N1. These are two different subtypes of the influenza A virus.

Kids have been hit especially hard: as of February 22, 98 children—most of them unvaccinated—have died from flu in the U.S.

Not long after the first flu shot was introduced in 1945 by University of Michigan virologist Thomas Francis and his ...

Previous exposures to older flu strains prime the immune system to produce antibodies against bird flu (H5N1).

Based on the data presented, the committee agreed that there was a need to change the influenza A/H3N2 virus strains from the 2024-2025 formula. Recommendations on the strain composition of ...

Older adults who were exposed to seasonal flu viruses that circulated prior to 1968 are more likely to have some protection ...