Information on Bird Flu
H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in U.S. poultry and dairy cows with two recent human cases in U.S. dairy workers. The latest information, data and guidance on the current situation are available from the links below:
Current Situation Summary | Current H5N1 Bird Flu Situation in Dairy Cows
Avian influenza or bird flu refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses naturally spread among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Bird flu viruses do not normally infect humans. However, sporadic human infections with bird flu viruses have occurred.
- Technical Update: Summary Analysis of the Genetic Sequence of a Highly Pathogenic Avian Influenza A(H5N1) Virus Identified in a Human in Michigan Friday, May 24, 2024
- CDC A(H5N1) Bird Flu Response Update May 24, 2024 Friday, May 24, 2024
- CDC Reports Second Human Case of H5 Bird Flu Tied to Dairy Cow Outbreak Wednesday, May 22, 2024
- Interim Guidance on Testing, Specimen Collection, and Processing for Patients with Suspected Infection with Novel Influenza A Viruses with the Potential to Cause Severe Disease in Humans
- Pandemic Influenza
- Related Links
- Research
- Zoonotic Influenza: Detection, Response, Prevention, and Control Reference Guide