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For one, the bird flu virus — known as H5N1 — has spread uncontrolled in animals, including cows frequently in contact with people. Additionally, detections in wastewater show the virus is ...
MATTHEW HATCHER/AFP via Getty Images. A bird flu outbreak has ravaged the world's birds since 2020 and infected cattle earlier this year. ... Bird flu outbreak. The H5N1 virus first reemerged in ...
At least 61 people in the US have contracted bird flu amid outbreaks in poultry and dairy cows. What are the symptoms? What to know about highly pathogenic avian influenza, aka, H5N1.
Influenza A virus subtype H5N1 (A/H5N1) is a subtype of the influenza A virus, which causes the disease avian influenza (often referred to as "bird flu"). It is enzootic (maintained in the population) in many bird populations, and also panzootic (affecting animals of many species over a wide area). [ 1 ]
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.
Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 confirmed human H5N1 infections in the United States this year.
Containing the spread of this highly pathogenic bird flu strain in cattle hinges on our ability to detect and track it. The H5N1 outbreak in dairy cows is widespread and spans multiple U.S. states.
This colorized electron microscope image provided by the National Institute of Allergy and Infectious Diseases in 2024 shows avian influenza A virus (bird flu) particles, red-yellow, grown in ...