ABC News on MSN4d
2nd strain of bird flu infects cows for the 1st time: USDA
A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture announced.
The New York Times10d
Cows Have Been Infected With a Second Form of Bird Flu
By Emily Anthes and Apoorva Mandavilli Dairy cows in Nevada have been infected ... In November, a 13-year-old Canadian girl also became infected with the D1.1 virus, but it is unclear where ...