Hep E vaccine aces large late-stage study in China

The CDC says that a large, late-stage study of a new vaccine to guard against hepatitis E--a common and dangerous water-borne virus often found in the unsanitary waters of developing countries--demonstrated its effectiveness and safety. Researchers tested the vaccine in close to 100,000 healthy volunteers in China's Jiangsu Province. The vaccine was given in three doses, the second being a month after the first and the third six months after the first. They reported that all of the...