The number of influenza cases is surging across the United States, putting significant strain on many hospitals. We asked the ...

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

There are also two other types of influenza – C and D – but we don’t worry about them as much. Influenza C typically causes mild illness and doesn’t cause widespread epidemics, the CDC ...

Recent viral mutations have shown avian influenza’s adaptability to mammalian hosts, prompting infectious disease, animal ...

Influenza type A and influenza type B are two types of strains that circulate each year. Influenza A is most commonly seen earlier in the respiratory virus season, with influenza B usually ...

and 1 influenza type B virus. 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 ...