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.

2 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 …

1 day ago · The newer version, known as D1.1, was confirmed in Nevada cattle on Jan. 31. It was found in milk collected as part of a monitoring program started in December. ... The D1.1 version of the virus ...

1 day ago · A dairy worker in Nevada has been confirmed to be infected by a new bird flu strain found to be spreading among cows in the state last week. That strain of the H5N1 bird flu virus, called D1.1 by ...

Feb 5, 2025 · 2.3.4.4b, genotype D1.1 in dairy cattle. This confirmation was a result of State tracing and investigation, following an initial detection on silo testing under the USDA’s National Milk Testing Strategy (NMTS) in Nevada. USDA APHIS continues to work with the Nevada Department of Agriculture by

A new strain of bird flu, D1.1, has been found in four Nevada dairy herds, marking the first time it’s been confirmed in cattle. Unlike the milder B3.13 strain, D1.1 causes severe illness and has significantly increased egg prices by 47%, along with dairy …

6 days ago · The Animal and Plant Health Inspection Service National Veterinary Services Laboratories confirmed by whole genome sequence the first detection of highly pathogenic avian influenza H5N1 clade 2.3.4.4b, genotype D1.1 in dairy cattle.

5 days ago · APHIS used whole genome sequencing to confirm HPAI H5N1 clade 2.3.4.4b, genotype D1.1. This confirmation was a result of state tracing and investigation, following an initial detection on silo testing under the USDA’s National Milk Testing Strategy (NMTS) in Nevada.

5 days ago · The new version, known as D1.1, was confirmed in Nevada cattle on Friday, according to USDA. It was detected in milk collected as part of a surveillance program launched in December.

6 days ago · 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...