May 3, 2024 · Avian influenza refers to disease in birds caused by infection with avian (bird) influenza (flu) Type A viruses. Avian influenza A viruses have been isolated from more than 100 different species of wild birds around the world.

Jan 31, 2025 · Clinicians can visit CDC's avian influenza (bird flu) information for health professionals for the latest guidance.

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] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations.

Jan 17, 2025 · H5 bird flu is causing outbreaks in wild birds and poultry, other animals and sporadic human cases. Infections with highly pathogenic avian influenza A (H5N1) viruses in mammals have been reported. A multi-state outbreak of HPAI A (H5N1) bird flu in dairy cows was first reported on March 25, 2024.

Avian influenza, commonly called “bird flu,” is a viral infection that spreads in birds, cows and other animals. It can sometimes spread to people. In humans, H5 subtypes of influenza A are the most common cause.

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 infected birds to humans through close contact with birds or contaminated environments, such as in backyard poultry farm settings and at markets where birds are sold.

Avian influenza, or "bird flu," is a contagious viral disease of domestic and wild birds. It's a major threat to the poultry industry, animal health, trade, and the economy worldwide. Caused by influenza type A viruses, the disease varies in severity …

Jun 8, 2024 · Bird flu, also called avian influenza, is caused by influenza type A virus infections in bird species. Depending on the strain, bird flu may cause the bird to have no symptoms, mild illness, serious illness or lead to the death of the bird. Bird flu rarely infects humans.

Jan 28, 2025 · Bird flu, or avian influenza, is spreading among livestock and other mammals in the United States, raising concerns that another pandemic may be looming. Last month, California declared a state of ...

2 days ago · This is the second known instance of a type of avian flu being introduced into cattle herds by birds. It suggests that the virus could be seeding itself into cattle through introductions from wild ...