Influenza (Flu)
Influenza Updates:
- Flu activity is high in the U.S. and expected to continue for weeks.
- 173.9 million doses of flu vaccine have been distributed.
CDC Recommends:
- Everyone 6 months and older get a flu vaccine each season. Find vaccine!external icon
- People who are at high risk of serious flu illness should take flu antiviral drugs quickly if they get sick.
Key indicators that track flu activity remain high and, after falling during the first two weeks of the year, increased over the last four weeks.
About Flu
Learn about flu season and get answers to questions.
Flu Season
Find information about current and past flu seasons.
People at High Risk
Understand who is at high risk from flu.
Communication Resource Center
Find resources to promote flu prevention.
Health Professionals
Learn what CDC recommends this season.
Flu News & Spotlights
Read about CDC's work with flu.
Flu Vaccine Finder
Find the flu shot near you.
Need to fill a prescription for flu antivirals?
Other Types of Influenza
Pandemic
Avian
Swine/Variant
Flu in Animals
Canine Flu
Animal to HumanStay Connected with Flu
What's New
- Interim Flu Vaccine Effectiveness Estimates for the 2019-20 Flu Season Show Flu Vaccines Providing Substantial Protection, Especially in Children Thursday, February 20, 2020
- Weekly U.S. Influenza Surveillance Report Friday, February 14, 2020
- CDC’s portable flu testing kit allows for faster, on-site detection of viruses that could cause the next pandemic Thursday, February 6, 2020
- Study confirms that some flu vaccines cause a stronger immune response among older adults Thursday, December 12, 2019
- Update: Interim Guidance for Health Care Providers for Managing Patients with Suspected E-cigarette, or Vaping, Product Use–Associated Lung Injury — United States, November 2019 Thursday, November 21, 2019
Page last reviewed: February 14, 2020