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2018-2019 Flu Season

Note: “Prevention and Control of Seasonal Influenza with Vaccines: Recommendations of the Advisory Committee on Immunization Practices — United States, 2018–19 Influenza Season” has been published. CDC recommends annual influenza vaccination for everyone 6 months and older with any licensed, age-appropriate flu vaccine (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 2018-2019 flu season is available.

Get Vaccinated

What You Need to Know

Find preventive steps, symptoms, and treatment options for this flu season.

Recommendations for this season

Health Care Providers

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

Stay up-to-date on noteworthy influenza-related developments

Flu News & Spotlights

Stay up-to-date on noteworthy influenza-related developments.

FluView logo


A weekly influenza surveillance report prepared by the Influenza Division. All data are preliminary and may change as more reports are received.

chart showing 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.

flu season and themometer

FluSight Forecasting

The Influenza Division at CDC has engaged with members of the scientific community on real-world influenza forecasting challenges known as FluSight.