As bird flu sweeps across US poultry and cattle farms, researchers are racing to find ways to contain the outbreaks before ...

Over the past three years, avian influenza (H5N1) has spread around the U.S. and affected many species of birds and mammals, ...

The arid region had experienced triple-digit temperatures, which officials believe may have been a factor in the cows' deaths. The images illustrate the impact of the rapid spread of bird flu ...

The first death caused by H5N1 bird flu was reported in January 2025. Some believe the virus could eventually pose a ...

Since bird flu was first discovered in U.S. cattle last year, the virus has spread to more than 1,000 herds across the ...

Easy replication in cattle mammary glands means H5N1 bird flu is under no evolutionary pressure to adapt to spread easily in humans.

Bird flu is here to stay. The H5N1 avian influenza is proliferating among U.S. cows and there are now two strains circulating among mammals and birds. Though there are only 68 confirmed cases in ...

Outbreaks to other states have been linked to moving infected cattle. With bird flu spilling into dairies across the U.S., several Midwestern states have ramped up efforts to curb the virus.

The case was confirmed in a dairy worker in Colorado. The fourth human case of bird flu linked to the current dairy cow outbreak was confirmed on Wednesday in a dairy worker in Colorado ...

He covers federal public health agencies. 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 ...

Dairy cows in Nevada have been infected with a second version of the avian influenza virus that is different from the one rampaging through herds since the spring, Agriculture Department officials ...

Almost a year ago, the H5N1 strain of bird flu was discovered in dairy cows for the first time. Since then, there have been confirmed cases in at least 976 herds across 17 states, including 13 ...