Flu 2025 Map. During the last week of november, according to a new report from the centers for disease control and prevention (cdc). Cdc uses models to estimate the range of flu illnesses, medical visits, hospitalizations, and deaths related to flu that have occurred during the season to date.

Influenza virological and epidemiological season report prepared for the who consultation on the composition of influenza virus vaccines for the southern hemisphere. Flu rates are also high in oregon, california, arizona and.