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.

Feb 4, 2025 · Clinicians can visit CDC's avian influenza (bird flu) information for health professionals for the latest guidance.

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, 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. [2] [3]Symptoms of avian influenza vary …

Jan 30, 2025 · Our birds are facing outbreaks of avian influenza, also known as bird flu. The outbreak is continuing into 2025, and the number of birds that have died from avian influenza is now a record. BirdNote has compiled a list of commonly asked questions about the disease and practical things you can do to help stop the transmission of avian influenza.

Feb 3, 2025 · Bird flu, or avian flu, as it’s also known, is an influenza that we call a zoonotic infection. That is, it’s a virus that primarily infects animals and especially birds. Birds are a major reservoir on this planet for influenza.

5 days ago · The US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) today announced a new spillover of H5N1 avian flu to dairy cattle, which involves the D1.1 genotype currently circulating in wild birds and has been implicated in human infections, including the fatal case in a Louisiana resident who had contact with sick backyard birds.

Jan 28, 2025 · According to the Centers for Disease Control and Prevention, there have been 67 confirmed human cases of the H5 bird flu since the 2024 outbreak began. Bird flu or avian influenza is...

5 days ago · Bird flu—or avian influenza —has been spreading for decades in wild birds across the globe. More recently, we’ve seen it move to other animals. In 2022, it started to infect commercial and...

Jan 29, 2025 · BOSTON — State environmental and health officials are informing the public that Highly Pathogenic Avian Influenza (HPAI) H5N1 virus, which rarely infects humans, is suspected to be the cause of death in cases of both wild and domestic birds in several Massachusetts municipalities. The Division of Fisheries and Wildlife (MassWildlife), the Massachusetts Department of Agricultural Resources ...