About Flu

Flu is a respiratory virus with peak spread every year between October and May and can cause severe illness or death, especially in infants and young children, people 65 years or older, pregnant women, and people with certain health conditions or weakened immune systems.

During an average flu season, flu can cause millions of illnesses, hundreds of thousands of hospitalizations and tens of thousands of deaths. Many more people could be protected from flu if more people got vaccinated.

Getting a flu vaccine prevents millions of illnesses and flu-related doctor visits every year.