Everyone 6 months of age and older should get a flu vaccine every season. Vaccination is particularly important for people who are at high risk of serious complications from influenza. You should get a flu vaccine before flu begins spreading in your community, and it takes about two weeks for antibodies to develop in the body. But is it possible to get your flu vaccine TOO early?
According to the CDC, the optimal time for flu vaccination is by the end of October. Some data indicates that early vaccination (ex. August) may be too early, because influenza season peaks later in the year. Flu vaccine protection starts to decline within weeks. It’s 16% less effective for every 28 days after vaccination. With the typical peak flu season being December-February, this makes early vaccinations much less effective during that time. You only get one shot per flu season, so make it the right time to give you the right protection!
Bottom line… timing of your annual flu vaccine matters!