Avian influenza - Wikipedia
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.
Avian Influenza in Birds: Causes and How It Spreads
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.
H5 Bird Flu: Current Situation | Bird Flu | CDC - Centers for Disease ...
4 days ago · CDC influenza (flu) surveillance systems show no indicators of unusual influenza activity in people, including avian influenza A (H5). Total people monitored and total people tested will be updated weekly on Fridays. Human cases are typically updated by 5 PM EST on Mondays, Wednesdays and Fridays.
Avian Influenza Type A | Bird Flu | CDC - Centers for Disease …
Dec 20, 2024 · Avian influenza A viruses are classified into the following two categories: low pathogenicity avian influenza (LPAI) A viruses, and highly pathogenic avian influenza (HPAI) A viruses. The categories refer to molecular characteristics of a virus and the virus' ability to cause disease and mortality in chickens in a laboratory setting .
Influenza: Avian - World Health Organization (WHO)
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 (Bird Flu): H5N1, Causes, Symptoms & Treatment
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.
Bird flu (avian influenza) - Symptoms and causes - Mayo Clinic
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.
Avian Influenza - Animal and Plant Health Inspection Service
Aug 30, 2024 · 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 depending on the strain and species affected.
Influenza (Avian and other zoonotic) - World Health Organization …
Oct 3, 2023 · Humans can be infected with avian, swine and other influenza viruses. Direct contact with infected animals (through handling, culling, slaughtering or processing) or indirect contact (through environments contaminated with bodily fluids from infected animals) represent a risk for human infection.
Avian Influenza | U.S. Fish & Wildlife Service - U.S. Fish and …
Highly pathogenic avian influenza (HPAI) viruses can severely affect domestic animal, wildlife, and sometimes human health. Outbreaks of Eurasian lineage highly pathogenic avian influenza viruses have been impacting domestic poultry and wild …