Question

The goal of the flu vaccine is to prevent you from becoming infected with influenza.

Answer 1

How do flu vaccines work? Flu vaccines cause antibodies to develop in the body about two weeks after vaccination. ... Traditional flu vaccines (called “trivalent” vaccines) are made to protect against three flu viruses; an influenza A (H1N1) virus, an influenza A (H3N2) virus, and an influenza B virus.