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Since arriving on a Texas dairy farm nearly a year ago, bird flu has caused havoc in ... Bird flu led to the deaths of nearly 50 million domestic birds in 2024 and more than 19 million already ...
H5N1 influenza virus is a type of influenza A virus which mostly infects birds. H5N1 flu is a concern because its global spread may constitute a pandemic threat. The yardstick for human mortality from H5N1 is the case-fatality rate (CFR); the ratio of the number of confirmed human deaths resulting from infection of H5N1 to the number of those confirmed cases of infection with the virus.
As the bird flu continues to spread ... expected to increase from last year by about 20% in 2025, compared to about 2.2% for ... with a backyard chicken or wild bird might have inhaled the virus ...
How deadly is the bird flu? The US has reported its first death from avian influenza, H5N1. ... In comparison, seasonal influenza causes an estimated 4,900 to 51,000 deaths every year in the U.S., ...
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.
On November 7, the CDC reported asymptomatic bird flu infection in 4 workers at dairy farms. The workers didn't recall ever being sick but had antibodies showing that they had been infected with bird flu. [98] On November 22, the CDC confirmed the first case of bird flu in a U.S. child, being the 55th case of bird flu in humans in the U.S.
So far, bird flu outbreaks in the U.S. have been from a strain of highly pathogenic avian influenza (HPAI) called H5N1. That strain has been responsible for all the egg shortages and infections in ...
On 20 January, Iraq reported an outbreak of highly pathogenic H5N8 bird flu on a farm in the city of Samarra, which killed 63,700 birds out of the 68,800-strong flock, according to the Paris-based World Organisation for Animal Health (OIE). The remaining birds were subsequently culled.