Why dangerous bird flu is spreading faster and farther than first thought in U.S. cattle
While American officials are ramping up testing to keep sick cows from being moved between states, scientists say we’re already several steps behind the spread of a disease that could pose a major threat to human health.
While American officials are ramping up testing to keep sick cows from being moved between states, scientists say we’re already several steps behind the spread of a disease that could pose a major threat to human health.