Cattle infected with bird flu suffer reduced milk production, digestive issues, fever, and diminished appetite, according to farmers and veterinarians. In South Dakota, a 1,700-cow dairy sent a ...

As the H5N1 bird flu virus mutates and rapidly spreads through American cattle herds — a first for the U.S. — doctors and veterinarians are fearful that if the virus is left unchecked, it ...

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

With the number of U.S. dairy herds infected with H5N1 bird flu rising almost daily, fears are growing that the dangerous virus cannot be driven out of this species. That belief is amplifying ...

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

pushing to solve the bird flu outbreak currently spreading through U.S. animals-- and develop ways to stop it. Particularly important is the testing of a cow vaccine designed to stop the continued ...

As more humans become infected by H5N1 bird flu, experts worry of a new pandemic with 70 human cases in the U.S. including 1 death. What to look for.

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

"When they compared their cow flu isolate to bird flu they found that it had already begun to gain some of the properties that would be associated with the ability to spread effectively through ...

More: Avian flu has spread to cows ... And mice became sick within a day of drinking raw milk from an infected cow. The New England Journal of Medicine published a letter from researchers at ...

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 ...