While influenza viruses (flu virus) spread year-round, most flu activity peaks between December and February.
The flu vaccine is your best bet for avoiding getting and/or spreading influenza this winter. This year's seasonal flu vaccines each provide protection against four of the most common flu viruses.
The flu vaccine can be found at many local hospitals, clinics, and pharmacies.
To find a location near you, please visit https://www.vaccines.gov/find-vaccines/.