Information on Avian Influenza

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Avian influenza refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses occur naturally among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Avian flu viruses do not normally infect humans. However, sporadic human infections with avian flu viruses have occurred. The links below offer more information about avian influenza.

Bird Flu Basics
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Health Care Guidance
Health care professionals
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Bird Flu Updates
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Prevention

Take Action to Prevent the Spread of Flu Between Pigs and People

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Treatment

Influenza antiviral drugs can be used to treat influenza infections.

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Virus Subtypes

Avian influenza A viruses H5, H7 and H9 are known to infect people.

What CDC Does

CDC works to improve global control and prevention of seasonal and novel influenza, including avian influenza viruses, and works to improve influenza pandemic preparedness and response.

CDC works to improve global control and prevention of seasonal and novel influenza, including avian influenza viruses, and works to improve influenza pandemic preparedness and response.

Flu Can Spread Between Birds and People
Avian Influenza Transmission Infographic

Avian Influenza Transmission Infographic Cdc-pdf[555 KB, 2 Pages]

Spanish Cdc-pdf[531 KB, 2 Pages]

Simplified Chinese Cdc-pdf[581 KB, 2 Pages]

Avian Flu Microsite

Wild aquatic birds - particularly certain wild ducks, geese, swans, gulls, shorebirds and terns - are the natural hosts for all known influenza type A viruses.

Add the most current avian influenza information to your website!

More Information
Page last reviewed: March 21, 2019
Content source: Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (NCIRD)