PAHO: Avian influenza A(H5N1) continues circulation in the Americas at AshTip Solution.

AshTip NewsLetter |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 birds, mammals, and sporadic human infections linked to exposure to the virus.

PAHO Org

PAHO: Avian influenza A(H5N1) continues circulation in the Americas

PAHO: Avian influenza A(H5N1) continues circulation in the Americas

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 birds, mammals, and sporadic human infections linked to exposure to the virus. Clade 2.3.4.4b—the region’s predominant strain since 2021—continues to…