Dec 12, 2025 · H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with sporadic human cases in U.S. dairy and poultry workers.

Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1]

Apr 18, 2025 · Bird flu, also known as avian influenza and H5N1, has spread beyond wild birds and domestic poultry to dozens of mammal species, including dairy cows. The risk of infection …

Dec 5, 2024 · A type of influenza A virus, often H5N1 in humans, causes bird flu. The virus can infect your upper respiratory tract and lungs, and sometimes spread to other parts of your …

Mar 18, 2025 · While bird flu is rare in humans, infections can occur. Learn about symptoms, risk factors and prevention.

Mar 12, 2025 · What is avian influenza? Avian influenza is an influenza type A virus that occurs naturally in wild aquatic birds, including ducks, geese and gulls. Mild forms of avian influenza …

Dec 30, 2025 · Confirmed avian flu outbreaks have hit another five US states, affecting more than 128,000 birds, according to the US Department of Agriculture’s Animal and Plant Health …

Jun 8, 2024 · Flu viruses in other animals, such as birds, may be a risk to people. Learn more about the symptoms, causes, prevention and treatment for bird flu in people.

May 16, 2024 · Avian influenza, sometimes known as bird flu, is a disease caused by a virus that mainly affects birds but can also affect mammals, including humans. It primarily spreads from …

Jun 10, 2025 · While the overall risk to humans is low at present due to the limited ability of the virus to spread from person to person, the risk to individuals who come into close contact with …