Influenza 2025 Giugno 2025. From 4 may to 7 june 2025, four human cases of infection with influenza a (h5n1) viruses, one human case of infection with an influenza a (h5n2) virus, two. On 17 may 2025, the who collaborating centre (who cc) for reference and research on influenza in australia notified the international health regulations (ihr) national.

April 5, 2025 —on march 29, 2025, cdc reported this year’s first u.s. The infection with an influenza a (h1n2) variant (v) virus occurred in a child living near a pig farm in pennsylvania who had direct contact with pigs prior to illness onset.