Flu 2024 Vis Cdc. Type a influenza is the cause of most human illness and has many subtypes based on the variations in the. Trivalent flu vaccines are formulated to protect against three flu.
Type a influenza is the cause of most human illness and has many subtypes based on the variations in the. On march 5, the fda’s vaccines and related biological products advisory committee (vrbpac) met to discuss and make recommendations on the vaccine.