Cdc Flu Season 2024 2024. For example, as of may 11, 2024, cdc data indicated that only 53.9% of u.s. Trivalent flu vaccines are formulated to protect against three flu.

So far this season, the flu has caused at least 14 million illnesses, 150,000 hospitalizations and 9,400 deaths, according to the u.s. In some years, flu season.