Avian influenza, commonly known as bird flu, is a disease caused by influenza viruses originating in birds. These viruses of the Orthomyxoviridae family include A(H5N1) but also other influenza ...

Highly pathogenic avian influenza viruses cause critical damage to animal health and the agricultural economy and may carry pandemic risk. Viruses related to the goose/Guangdong 2.3.4.4 hemagglutinin ...

Washington, D.C., November 25, 2025 (PAHO) – The Pan American Health Organization (PAHO) reported that avian influenza A(H5N1) continues to circulate in the Americas, with new outbreaks detected in ...

Sporadic human infections with avian influenza A viruses have caused a wide spectrum of illness. As these novel influenza A viruses pose pandemic potential, timely detection and characterization of ...

Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United States, with sporadic human cases. We describe characteristics of human ...

Avian influenza A viruses, particularly the H5N1 subtype, continue to grab headlines — raising concerns for the public who is likely leery of another pandemic. Yet many infectious disease experts say ...

Johanna Harvey, an assistant professor of wildlife disease ecology at the University of Rhode Island, has described bird flu in public presentations as a quiet virus with loud consequences. Now, she's ...

A research team has achieved a significant breakthrough in developing broadly protective, live-attenuated influenza vaccines (LAIV). These innovative LAIV platforms offer potential to develop ...

A new study published in Nature Microbiology has uncovered significant genetic and antigenic diversity among H9N2 avian influenza viruses (AIVs) circulating in poultry across China, highlighting the ...

The Global Virus Network (GVN) is closely monitoring detections of highly pathogenic avian influenza A (H5N1), commonly known as bird flu, in several mammal species in Australia as the virus continues ...