The information on CDC’s avian influenza website is no longer being updated. Posted content is being maintained “live” for background purposes, but readers should understand that content may not be current. For more up-to-date information on human infections with avian influenza A (H5N1) viruses, please see the new CDC avian influenza web site and the the World Health Organization (WHO) Avian Influenza Situation Update page. For background information regarding recent media reports of changes in circulating H5N1 viruses, please see the WHO and World Organization for Animal Health (OIE) statements on this issue.
Avian influenza virus usually refers to influenza A viruses found chiefly in birds, but infections can occur in humans. The risk is generally low to most people, because the viruses do not usually infect humans. However, confirmed cases of human infection have been reported since 1997.…more
What You Should Know
Specific Topics
- The Virus & Its Spread
Flu viruses, avian flu viruses, spread among birds, spread to people - Prevention
Infection control, vaccine development
Information for Specific Groups
- Health Professionals
- State Health Departments
- Poultry Industry
- Persons Involved in Eradication Activities
Additional Resources
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