Dairy cattle seem to survive infection with the H5N1 strain of influenza virus, which has killed millions of wild birds.Credit: Ben Brewer/Reuters Concerns that pasteurized milk in the United States is teeming with H5N1 avian influenza virus are over. But there’s no sign that the outbreak in cows is over, and scientists are increasingly concerned … Read more
A cow is milked in Washington State.Credit: USDA Photo/Alamy A strain of highly pathogenic avian influenza has been silently spreading in US cattle for months, according to preliminary analysis of genomic data. The outbreak is likely to have begun when the virus jumped from an infected bird into a cow, probably around late December or … Read more
A dairy worker in Texas has become infected with a strain of avian influenza similar to that infecting dairy cattle in several US states.Credit: Adam Davis/EPA-EFE/Shutterstock Researchers are closely monitoring the spread of a worrisome strain of avian influenza to cattle — and one person — at farms in six US states. These infections represent … Read more