While avian influenza had already been detected in cattle and other mammals, including in the United States, the infection of a sheep will increase concern over the potential impact of the disease ...

The single case was identified in Yorkshire during a routine check of livestock on a farm where the H5N1 virus, also called avian influenza, had previously been confirmed in captive birds.

In a statement, Britain’s government said that avian origin flu (or H5N1) had been found in a ewe during what it called “routine surveillance” of livestock in Yorkshire in the north of ...