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On July 25, 2008, the Food and Agriculture Organization (FAO) released an Avian Influenza Disease Emergency Situation Update, reporting that H5N1 pathogenicity was continuing to gradually rise in endemic areas but the avian influenza disease situation in farmed birds was being held in check by vaccination. Eleven outbreaks of H5N1 were reported ...
Avian influenza HA preferentially binds to alpha-2,3 sialic acid receptors, while human influenza HA preferentially binds to alpha-2,6 sialic acid receptors. [40] Usually other differences also exist. Currently, there is no human-adapted form of H5N1 influenza, so all humans who have caught it so far have caught avian H5N1.
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.
Bird flu can have a 50% fatality rate, but has not spread widely to humans Since January 2022 in the U.S., the H5N1 virus has killed over 90 million birds across 48 states.
Rare human bird flu infections can occur when the virus gets into a person's mouth, nose, eyes or is inhaled, according to the CDC. Most cases have occurred when a person has close or unprotected ...
Bird flu can be transmitted from birds to humans if they come in close contact with infected animals. According to experts, infected birds shed flu viruses in their saliva, mucous, and feces.
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.
Bird flu is a scary illness with a high mortality rate. But so far, infections in the U.S. have been relatively mild—until now. A patient in Louisiana has been hospitalized with a severe case of ...
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