H5N1 bird flu is branching out. New data from the Centers for Disease Control and Prevention indicates that a second type of H5N1 has likely spread from dairy cows to humans. The CDC and health ...

Dairy cows feed at a dairy farm near Corcoran, Calif. Seven out of 10 herds that have been found to be infected with avian flu are in the state. Avian flu, highly contagious and damaging to poultry ...

She had just graduated from college when the frightening symptoms started to surface. The vivacious, easygoing 22-year-old suddenly became inexplicably irritable and short-tempered. Then her memory ...