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What is bird flu? Bird flu is a disease caused by a family of flu viruses primarily transmitted among birds. Avian influenza viruses, according to the CDC and USDA, are classified into two groups ...
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 ]
In the United States, 53 bird flu cases have been identified in humans and there are ongoing outbreaks in dairy cattle, sporadic outbreaks in poultry and widespread infections in wild birds.
Human cases of bird flu are now in six states (REUTERS/Tom Polansek/File Photo) The total number of human cases across the US has risen to 31, although the Centers for Disease Control and ...
2020–2024 H5N1 outbreak. Since 2020, outbreaks of avian influenza subtype H5N1 have been occurring, with cases reported from every continent except Australia as of November 2024. [1][2][3][4] Some species of wild aquatic birds act as natural asymptomatic carriers of a large variety of influenza A viruses, which can infect poultry, other bird ...
October 24, 2024 at 1:17 PM. The number of confirmed bird flu cases has risen in the U.S. to 31, federal health officials said on Thursday. Washington health officials reported four presumptive ...
In April 2005 there begins an unprecedented die-off of over 6,000 migratory birds at Qinghai Lake in central China over three months. This strain of H5N1 is the same strain as is spread west by migratory birds over at least the next ten months. In August 2005 H5N1 spread to Kazakhstan, Mongolia and Russia.
Since 2022, bird flu in the United States has infected over 90 million chickens, more than 9,000 wild birds, 34 dairy herds, one person in Texas who came in close contact with infected cattle and ...