Source: Centers for Disease Control and Prevention — Content from the Centers for Disease Control and Prevention (public domain).
Learn about identifying flu symptoms, how the diagnosis works, common complications, and more.
Aug. 26, 2024
For Everyone
Strategies to reduce the risk of seasonal flu.
Sept. 26, 2025
If you get sick with flu, flu antiviral drugs may be a treatment option.
Sept. 2, 2025
* [A(H5) Bird Flu: Current Situation](</bird-flu/situation-summary/index.html>)
A(H5) bird flu is causing outbreaks in wild birds and poultry, other animals and sporadic human case
* [Weekly U.S. Influenza Surveillance Report](<https://www.cdc.gov/fluview/>)
* [Respiratory Illnesses](<https://www.cdc.gov/respiratory-viruses/index.html>)
Learn what respiratory illnesses have in common and steps to help protect yourself and others.
* [About Estimated Flu Burden](</flu-burden/php/about/index.html>)
Each year, CDC estimates the burden of flu in the U.S to understand the impact of flu each season
* [FluVaxView](</fluvaxview/index.html>)
Flu vaccination data for people 6 months and older as recommended by the ACIP.
Featured
Influenza for Health Care Providers
Health care professionals play a critical role in helping patients choose flu vaccines.
Sept. 3, 2024
Flu is a contagious respiratory illness that infect the nose, throat, and sometimes the lungs.
Aug. 13, 2024
Information for the Flu Season
Learn about the current flu season and find resources related to flu surveillance and past seasons.
Aug. 31, 2022
Flu Complications and People at Higher Risk
Learn more about who is at higher risk of developing potentially serious flu complications.
Sept. 11, 2024
Access CDC communication resources to share information about the importance annual flu vaccination
Aug. 14, 2024
Similarities and Differences between Flu and COVID-19
Learn about prevention and treatment for flu and COVID-19.
Sept. 17, 2024