Influenza (flu) viruses typically spread in fall and winter, with activity peaking between December and February. According to the Centers for Disease Control (CDC) and the U.S. Food and Drug Administration (FDA) getting vaccinated in the fall can lower your chances of getting the flu.
Flu is a serious disease, caused by influenza viruses, that can lead to hospitalization and even death. Every flu season is different, and the substantial health impacts can vary widely from season to season, with some flu seasons being worse than others. The CDC recommends that people ages 6 months and older get a flu vaccine by the end of October. Even if you wait until after October, the vaccine will still be beneficial and provide protection.
Flu vaccines are approved by the FDA for the prevention of influenza disease caused by four different influenza virus strains. Flu viruses can change from year to year, so the vaccine is updated to protect against the influenza virus strains that are expected to circulate in the U.S.
To find a flu vaccine in your area, visit vaccines.gov.