A Nevada dairy worker has contracted the deadly D1.1 strain of bird flu, seen in a British Columbia teen who recovered and a Louisiana victim who died.
This mutated strain spreads rapidly among mammals, including cattle, and is moving faster than others.
A Nevada dairy worker has contracted the deadly D1.1 strain of bird flu, seen in a British Columbia teen who recovered and a Louisiana victim who died.
This mutated strain spreads rapidly among mammals, including cattle, and is moving faster than others.