6 days ago · A multistate outbreak of HPAI A(H5N1) bird flu in dairy cows was first reported on March 25, 2024. This is the first time that these bird flu viruses had been found in cows. In the United States, since 2022, USDA APHIS has reported HPAI A(H5N1) virus detections in more than 200 mammals.

2 days ago · The Nevada infection involved a dairy worker with exposure to dairy cows experiencing an outbreak of bird flu. The mutation had also previously been found in a human case in Chile in 2023, the CDC ...

6 days ago · Deadly strain of bird flu linked to man's 2024 death appears in Nevada dairy cows 02:38. At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen ...

5 days ago · The variant of bird flu that killed a Louisiana resident has now been found in dairy cows. Until now, the human cases of bird flu traced to cattle have been mild, mostly eye...

6 days ago · 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.

6 days ago · 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 ...

6 days ago · The U.S. Department of Agriculture has detected a bird flu strain in dairy cattle that previously had not been seen in cows, the agency’s Animal and Plant Health Inspection Service said on ...

6 days ago · Dairy cows in Nevada have been infected with a new form of bird flu that is distinct from the version that has been spreading through herds over the last year, the U.S. Department of Agriculture ...

Feb 5, 2025 · Common clinical signs in affected cows include low appetite, reduced milk production, and abnormal appearance of milk (thickened, discolored). Lactating cows have been most highly affected, and signs of illness have been …

Apr 8, 2024 · The H5N1 strain of avian influenza has been found in dairy cows, raising concerns among scientists about what the spillover could mean for humans—and whether the virus has pandemic potential.