Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

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

H7N9 — is detected in at a poultry farm; scientists learn that past human flu exposure may provide some immunity to H5N1.

For the 2025-2026 US influenza season, egg-based influenza vaccines will include an A/Victoria/4897/2022 (H1N1)pdm09-like virus; an A/Croatia/10136RV/2023 (H3N2)-like virus; and a B/Austria ...

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

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

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

By most indications, the avian influenza outbreak that has washed over U.S. farms is at an ebb. Experts don’t seem hopeful, ...

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.

The CDC has issued interim effectiveness estimates for the 2024-2025 seasonal influenza and 2024-2025 COVID-19 vaccines.

26, 2025 — Pre-existing immunity against seasonal H1N1 flu might help explain why ... Jan. 2, 2025 — Highly pathogenic H5N1 avian influenza A virus (HPAI H5N1) remains a low risk to the ...

Though hospitalizations and other markers trended lower, the CDC received reports of 17 more pediatric flu deaths.