Health secretary says ‘I had nothing to do with the measles outbreak’ and claims to support measles and MMR vaccines ...

When two bald eagles built a nest in Philadelphia in 2007, it was the first time one had been recorded in the area in 200 years. But scientists are again worried about the eagles’ future. Although a ...

H5N1 bird flu has expanded to livestock herds in three new US states this week, broadening an outbreak that scientists say is outpacing containment efforts. The CDC has updated guidance for farm ...