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.
- Flu activity is decreasing; the 2018-2019 season is wrapping up.
- CDC estimates flu cases, medical visits, hospitalizations and deaths weekly this season.
CDC on Flu Treatment:
During week 13 (Mar 24-30), flu activity decreased in the U.S.
This web page provides weekly preliminary estimates of the cumulative in-season numbers of flu illnesses, medical visits and hospitalizations in the United States.
The Influenza Division at CDC has engaged with members of the scientific community on real-world influenza forecasting challenges known as FluSight.