H5N1 Technical Report
These technical reports are intended for scientific audiences. Additional information for scientific audiences and the general public is available on CDC’s Information on Bird Flu webpage.
More information about the current H5N1 bird flu situation is available at H5N1 Bird Flu: Current Situation Summary. The CDC public health risk assessment for H5N1 remains low.
April 26, 2024
NewTechnical Report
This report provides an update to the report posted on December 29, 2023
Read the ReportBird Flu Updates
- CDC A(H5N1) Bird Flu Response Update Friday, May 10, 2024
- CDC’s Flu Surveillance Systems Can Detect Avian Influenza A(H5N1) Virus Infections Wednesday, May 8, 2024
- New H5N1 Bird Flu Transmission Graphics Wednesday, May 8, 2024
Previous Reports
- December 29, 2023: Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses
- October 27, 2023: Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses (cdc.gov)
- October 5, 2023: Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses (cdc.gov)
- July 7, 2023: Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses (cdc.gov)
- April 17, 2023 – Addendum: Human Infection with highly pathogenic avian influenza A(H5N1) virus in Chile (cdc.gov)
- March 17, 2023: Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses (cdc.gov)
