Technical Report: Highly Pathogenic Avian Influenza A(H5N1) Viruses

Published on April 24, 2024

CDC is actively working on the domestic situation with clade 2.3.4.4b HPAI A(H5N1) viruses in wild birds, with outbreaks in poultry and backyard flocks, and infections of other animals, including dairy cattle.

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How CDC is monitoring influenza data among people to better understand the current avian influenza A (H5N1) situation

April 24, 2024
This page provides information on how CDC systems that monitor national, state, and local level influenza data are being used during the current avian influenza A(H5N1) situation

Updated Interim Recommendations for Worker Protection and Use of Personal Protective Equipment (PPE) to Reduce Exposure to Novel Influenza A Viruses Associated with Disease in Humans | Avian Influenza (Flu)

April 26, 2024
This updated guidance identifies select occupational groups that may be at increased risk of exposure to novel influenza A viruses. Specific recommendations for these groups may be updated as CDC learns more during this evolving situation.