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.

2025年2月4日 · H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with several recent human cases in U.S. dairy and poultry workers. While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures.

2024年12月20日 · A(H9N2) virus has been detected in bird populations in Asia, Europe, the Middle East and Africa. Sporadic avian influenza A(H9N2) virus infections have been reported in people with mild upper respiratory tract illness, although some infections have resulted in death.

2025年1月16日 · Bird flu, also known as avian influenza, is a viral infection that primarily affects birds but has the potential to impact humans and other animals. Over the years, outbreaks of bird flu have raised global concerns due to their ability to …

2024年5月3日 · 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.

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.

2024年6月8日 · 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.

2024年12月23日 · Bird flu, also called avian influenza, is a viral infection that can cause flu in birds and sometimes spread to mammals, including humans. Migrating waterfowl (wild ducks, geese, and storks)...