Flu Season

Note: “Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices — United States, 2019–20 Influenza Season” has been published. CDC recommends annual influenza vaccination for everyone 6 months and older with any licensed, influenza vaccine that is appropriate for the recipient’s age and health status, (IIV, RIV4, or LAIV4) with no preference expressed for any one vaccine over another. Content on this website is being updated to reflect this most recent guidance. More information about the upcoming 2019-2020 flu season is available.

Influenza Updates:

CDC on Flu Treatment:

  • Antiviral drugs can treat flu illness.
  • CDC recommends early antiviral treatment in people with flu symptoms who are 65 years and older or otherwise at high risk of developing serious flu illness.
Flu Activity & Surveillance

During week 13 (Mar 24-30), flu activity decreased in the U.S.

What to Know for the 2018-2019 Influenza Season
Get Vaccinated

Information you need to know about the current 2018-2019 flu season.

Current Season Info For Health Care Providers
Information and resources for health care providers for this flu season.

Find current information on the 2018-19 flu season.​

In-Season Estimates

This web page provides weekly preliminary estimates of the cumulative in-season numbers of flu illnesses, medical visits and hospitalizations in the United States.

FluSight Forecasting

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
Flu Finder
Find the flu shot near you.