H5 Bird Flu: Current Situation | Bird Flu | CDC
2 days ago · CDC provides an update on recent developments in the multistate outbreak of avian influenza A (H5N1) The current outbreak began in late March 2024 with the detection of H5N1 …
Influenza: A (H5N1) - World Health Organization (WHO)
May 16, 2024 · H5N1 is one of several influenza viruses that causes a highly infectious respiratory disease in birds called avian influenza (or "bird flu"). Infections in mammals, including humans, …
Highly Pathogenic Avian Influenza A (H5N1) Virus Infections ...
Dec 31, 2024 · 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 …
H5N1 Influenza - Animal and Plant Health Inspection Service
Sep 15, 2025 · The H5N1 strain of highly pathogenic avian influenza (HPAI) is present in wild birds worldwide and is causing outbreaks in U.S. domestic birds and dairy cattle.
Wild birds are driving the current U.S. bird flu outbreak
4 days ago · Penn Vet’s Louise Moncla has tracked H5N1 viruses in North America to better understand the role wild birds play in the current bird flu outbreak.
First Human Bird Flu Case In The U.S. Occurs After 9 Months ...
17 hours ago · The Bird flu has infected a human for the first time in 9 months in the U.S. A physician explains what you need to know and how to stay safe.
Ecology and spread of the North American H5N1 epizootic
4 days ago · The panzootic of highly pathogenic H5N1 since 2021 was driven by around nine introductions into the Atlantic and Pacific flyways, followed by rapid dissemination through wild …