Highlights in the History of Avian Influenza (Bird Flu) Timeline - 2020-2023

Published on February 24, 2023

The timeline gives a summary of significant HPAI and LPAI outbreaks in birds, infections in people, and events from 2020-2023.

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Ask the Expert: Highly Pathogenic Avian Influenza A(H5N1) Viruses

February 24, 2023
Like much of the rest of the world, the United States continues to experience outbreaks of highly pathogenic avian influenza (HPAI) A(H5N1) virus in wild birds and poultry.

H5N1 Update: Two Human H5N1 Cases in Cambodia

February 25, 2023
Two human infections with avian influenza A H5N1 (H5N1 bird flu) have been reported by Cambodia.