APHIS Confirms D1.1 Genotype in Dairy Cattle in Nevada
On January 31, 2025, the USDA Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) confirmed by whole genome sequence the first detection of highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.4b, genotype D1.1 in dairy cattle.
Bird flu strain that just jumped to cows infects dairy worker in Nevada …
3 days ago · The bird flu strain H5N1 clade 2.3.4.4b, genotype D1.1 is the predominant strain currently circulating in wild birds in North America and was confirmed for the first time in cows in Nevada last ...
Nevada reports H5N1 in dairy worker; USDA fleshes out D1.1
4 days ago · D1.1 is widely circulating in wild migratory birds and has been linked to a few illnesses in humans, some of them severe. The Centers for Disease Control and Prevention (CDC) added the Nevada case to its list of confirmed human cases since early 2024 , which now stands at 68 cases, 41 of them involving dairy workers.
New Strain of Bird Flu in Nevada Reveals a Concerning Mutation
5 days ago · D1.1 is the "current predominant genotype in migratory wild birds", according to the USDA, and it is responsible for a few serious human cases of highly pathogenic avian influenza (HPAI). These include a near-fatal case involving a teen in Canada and the first and only human death related to bird flu in North America thus far, involving a person over the …
USDA Confirms New Bird Flu Genotype In Dairy Cattle In Nevada
Feb 7, 2025 · Washington—USDA’s Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) last Friday confirmed by whole genome sequence the first detection of highly pathogenic avian influenza (HPAI, also known as bird flu) H5N1 clade 2.3.4.4b, genotype D1.1 in dairy cattle.
New strain of bird flu is detected in a Nevada dairy worker, CDC …
4 days ago · The D1.1 version of the virus was linked to the first U.S. death tied to bird flu and to a severe illness in Canada. A person in Louisiana died in January after developing severe respiratory symptoms following contact with wild and backyard birds. In British Columbia, a teen girl was hospitalized for months with a virus traced to poultry. While the risk to the general public is low, the CDC ...
Cows infected by lethal bird flu strain never before seen in the …
Feb 6, 2025 · At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state agriculture officials confirmed Wednesday, and respiratory symptoms like...
Bird flu variant found in Nevada cows shows signs of adaptation …
6 days ago · Scientists are closely watching the new infections in Nevada because gene sequences from affected cattle have shown that they are a subtype of the H5N1 virus, D1.1, which has been associated...
New bird flu strain infects Nevada worker; state's first human case
3 days ago · The D1.1 variant is a strain of the H5N1 avian influenza that has previously only been reported in wild birds. The variant has recently infected dairy cattle and humans, including the Nevada adult ...
USDA Confirms Genotype D1.1 In Nevada Dairy Cows
On January 31, 2025, the USDA Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) confirmed by whole genome sequence the first detection of highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.4b, genotype D1.1 in dairy cattle.
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