ATLANTA (AP) -- A vaccine against a cervical cancer virus cut infections in teen girls by half in the first study to measure the shot's impact since it came on the market. The results impressed health experts and a top government top health official called them striking.

LONDON (AP) -- Actor Michael Douglas taught the world at least one thing Monday: oral sex can sometimes cause cancer.

ATLANTA (AP) -- Doctors have known for some time that a sexually spread virus can cause some types of oral cancer. But actor Michael Douglas' comments on his own throat cancer in a newspaper story Monday threw a spotlight on a subject not often discussed.

WASHINGTON (AP) -- The decade-old law that transformed the battle against HIV and AIDS in developing countries is at a crossroads. The dream of future generations freed from epidemic is running up against an era of economic recovery and harsh budget cuts.

CAMBRIDGE, Mass. (AP) -- Kinky sex has been admitted to Harvard.