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.
New H5N1 bird flu variant found in Nevada dairy worker as new …
1 day ago · Last week, federal health officials announced that at least four dairy herds in Nevada had been infected by a strain of the H5N1 bird flu that is circulating in wild birds and that led to the ...
Bird flu variant found in Nevada cows shows signs of adaptation …
2 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 with ...
USDA Confirms New Bird Flu Genotype In Dairy Cattle In Nevada
4 days ago · This confirmation was a result of state tracing and investigation, following an initial detection on silo testing under USDA’s National Milk Testing Strategy (NMTS) in Nevada. This is the first detection of this virus genotype in dairy cattle (all previous detections in dairy cattle have been HPAI H5N1 clade 2.3.4.4b, genotype B3.13).
New bird flu infections in Nevada dairy cattle signal the virus may …
6 days ago · Six dairy herds in Nevada have tested positive for a newer variant of the H5N1 bird flu virus that’s been associated with severe infections in humans, according to the Nevada Department of ...
New bird flu variant in Nevada cattle adds to concerns over ... - NPR
4 days ago · The variant of H5N1 bird flu has been circulating in wild birds, but this is the first time it's been detected in cattle. ... The detection of the variant in Nevada marks one of the few new pieces ...
H5N1 bird flu spills over again; Nevada cows hit with different, …
5 days ago · The new Nevada dairy infections were first detected through milk testing conducted on January 31, ... The spread of H5N1 bird flu in dairy cows is unprecedented; the US outbreak is the first of ...
USDA confirms spillover of 2nd H5N1 avian flu genotype into …
5 days ago · A few days ago, APHIS reported four recent H5N1 detections in Nevada dairy herds, the state's first since December. Nevada officials said they were removing large nuisance populations of European starlings to curb the spread of the virus. The non-native species typically migrate through Nevada in the winter and outcompete local birds and pose a ...
Deadly version of H5N1 bird flu spills over into Nevada dairy cattle
5 days ago · A new version of the H5N1 bird flu virus has been detected in milk samples collected from dairy herds in Nevada. The strain, known as D1.1, had so far been associated only with migrating birds and ...
First Highly Pathogenic Avian Influenza detection in dairy cows in Nevada
Dec 6, 2024 · The Nevada Department of Agriculture (NDA) has received evidence of a detection of Highly Pathogenic Avian Influenza (H5N1) in dairy cattle in Nye County. The affected premises has been quarantined and mandatory testing will occur onsite at regular intervals until the herd is confirmed to be virus-free.
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