3 天之前 · 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 ...

1 天前 · A variant of H5N1 bird flu that has circulated widely in wild birds — and in several instances led to severe illness in humans — has turned up in dairy cattle for the first time. The findings ...

2 天之前 · 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 ...

2 天之前 · Dairy cattle in Nevada have been infected with a new type of bird flu that’s different from the version that has spread in U.S. herds since last year, Agriculture Department officials said Wednesday.. The detection indicates that distinct forms of the virus known as Type A H5N1 have spilled over from wild birds into cattle at least twice.

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 天之前 · 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 ...

2 天之前 · A version of the H5N1 bird flu virus known as B3.13 was confirmed in March after being introduced to cattle in late 2023, scientists said. It has infected more than 950 herds in 16 states.

2 天之前 · The cows in Nevada were infected with a version of the virus known as D1.1, which has been spreading in wild birds and poultry. ... Avian influenza is so called because it is best adapted to ...

2024年12月6日 · 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.

1 天前 · Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the ... A version of the H5N1 bird flu virus known as B3.13 was confirmed in March after being ...