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Information on Avian Influenza

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 information about avian influenza for different audiences.

Current Viruses

Highly Pathogenic Avian Influenza (H5N1)Highly Pathogenic Avian Influenza (H5N1)

Information for health professionals practicing in the U.S., when to contact the CDC, bird importation...

Avian Influenza A (H7N9)Avian Influenza A (H7N9)

Key facts, information for travelers, health care guidance, laboratory guidance, H7N9 images...

Health Care & Laboratorian Guidance

 Avian Flu Healthcare and Laboratory guidance

Testing and reporting, case definitions, specimen collection, infection control, treatment, vaccine development...