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CHICAGO (Reuters) -H5N1 bird flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in swine in the country, the U.S. Department of Agriculture said on Wednesday.
Cities in other states, including nine in Texas, have had detections. The avian flu, which saw a North American resurgence beginning in February 2022, is believed to have jumped from wild birds to ...
Webby said he doubts Michigan's H5N1 outbreaks in poultry and cattle — or its high wastewater detections — are linked to migratory bird activity in the state. Michigan is part of the ...
Although a wide variety of bird species have been shown to contract and spread Influenza A virus subtype H5N1, from waterfowl to poultry and birds of prey, mammalian infections have been of particular interest to researchers due to their potential to develop mutations that increase the risk of mammal-to-mammal spread and transmission to and among humans.
Outbreaks of the H5N1 avian influenza virus in wild birds and poultry have been ongoing in the United States since 2022. As of Dec. 13, 60 confirmed human cases of H5N1 have been reported across ...
Results from recent wastewater testing across the US suggests that H5N1 bird flu may not be as widespread as first feared. ... There’s a chance the H5 detections might also be due to human ...
Influenza A/H5N1 was first detected in 1959 after an outbreak of highly pathogenic avian influenza in Scotland, which infected two flocks of chickens. [ 59 ] [ 60 ] The next detection, and the earliest infection of humans by H5N1, was an epizootic (an epidemic in nonhumans) of H5N1 influenza in Hong Kong's poultry population in 1997.
[8] [10] In 2020, reassortment (genetic "swapping") between these H5-2.3.4.4b viruses and other strains of avian influenza led to the emergence of a H5N1 strain with a H5-2.3.4.4b gene. [8] The virus then spread across Europe, first detected there in the autumn of 2020 before spreading to Africa and Asia. [1]