Move Over, H5N1—Another Bird Flu Strain Has Arrived in the U.S.
The most well-known HPAI subtype circulating today is H5N1. Since early 2024, H5N1 has been causing outbreaks among cows across the country, and it has occasionally jumped into other mammals such as cats and people. But there are always other kinds of HPAI spreading around as well, including H7N9.
The latest outbreak of H7N9 was detected on a farm of 47,654 commercial broiler breeder chickens in Noxubee, Mississippi.
Animal health agencies say the variant of highly pathogenic avian influenza was found in a Mississippi broiler breeder flock.
The Mississippi Board of Animal Health (MBAH) late last week reported a highly pathogenic avian flu outbreak in commercial ...
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