Scientists and regulators are racing to understand how a deadly bird flu strain is behaving now that it has reached cattle in North America and Europe. U.S. retail milk testing has already documented ...

LONDON — Britain is confronting Europe's biggest outbreak of bird flu with a slaughter of turkeys - and consumers are asking whether the disease will hit humans next. Experts are trying to spread the ...

A month-long period without detection of highly pathogenic avian influenza virus on Europe’s poultry farms has ended with the ...