CDC - Seasonal Influenza (Flu) - Avian Influenza

CDC - Seasonal Influenza (Flu) - Avian Influenza

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 Situation
• Avian Influenza
  • in Birds
  • in Humans
  • Past Outbreaks in North America
• Highly Pathogenic Avian Influenza A (H5N1) virus
  • in Birds and Other Animals
  • in Humans
  • H5N1 Genetic Changes Inventory: A Tool for International Surveillance
  • Public Health Threat of Highly Pathogenic Avian Influenza A (H5N1) Virus
• Avian Influenza A (H7N9) Virus
• Prevention and Treatment of Avian Influenza A Viruses in People
• Influenza Type A Viruses and Subtypes
• Transmission of Avian Influenza A Viruses Between Animals and People
• Related Links

• Guidance
  • Interim Guidance for Follow-up of Contacts of Persons with Suspected Infection with Highly Pathogenic Avian Influenza A (H5N1) Virus
  • Interim Guidance for Laboratory Testing of Persons with Suspected Infection with Highly Pathogenic Avian Influenza A (H5N1) Virus in the United States