Flu Season
Note: “Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices — United States, 2021-2022 Influenza Season” has been published.
Influenza Updates:
- Overall, influenza (flu) activity is still low nationally, but CDC surveillance systems continue to detect slow but steady increases in flu.
- Elevated influenza-like-illness is likely related to COVID-19.
- 170.2 million doses of vaccine have been distributed.
CDC Recommends:
- Everyone 5 years of age and older is now eligible to get a free COVID-19 vaccination.
- Learn more about COVID-19.
A weekly influenza surveillance report prepared by the Influenza Division. All data are preliminary and may change as more reports are received.
Frequently asked question and answers for the 2021-22 influenza season.
Find current information on the 2021-22 flu season.
This web page provides estimates of flu cases, medical visits and hospitalizations for the 2019-2020 season.
The Influenza Division at CDC has engaged with members of the scientific community on real-world influenza forecasting challenges known as FluSight.
Flu Vaccine Finder
Find flu vaccines in your area.
Everyone 6 months of age and older needs a flu vaccine.