Six horse carcasses that tested positive for an equine painkiller may have entered the human food chain in France, Britain's food regulator announced Thursday - and the agency's chief said horsemeat tainted with the medicine may have been sold to consumers "for some time."

Russia may suspend its lease for some facilities at the Baikonur space complex in Kazakhstan, opening the way for its joint administration by the two countries, a senior Russian space official says.

California's tobacco prevention program saved $134 billion in health care costs over the last two decades, according to a new study published Wednesday about the smoking control program's impacts in the most populous state.

Health care company Johnson & Johnson has been told to pay a teenager and her parents $63 million after she suffered a life-threatening drug reaction and lost most of her skin when she took a children's pain reliever nearly a decade ago.

Scientists wondering why some children and not others survived one of China's worst food safety scandals have uncovered a suspect: germs that live in the gut.

Two top officials at a northern New Jersey municipal water authority falsified records and shut down contaminated wells in advance of safety tests to hide elevated levels of a contaminant, the state attorney general's office charged in an indictment released Wednesday.

Scientists at the University of Wisconsin-Madison are helping search for evidence of alien life not by looking into outer space, but by studying some rocks right here on Earth.

Fighting the problem of fake drugs will require creating a national drug-tracking system, the Institute of Medicine said Wednesday.

British officials say a mysterious virus related to SARS may have spread between humans, as they confirmed the 11th case worldwide of the new coronavirus in a patient who they say probably caught it from a family member.

A 3-year-old Cambodian girl has become the sixth person to die from bird flu in the country this year.

A 21-year-old woman who contracted the H5N1 strain of bird flu has died in southwest China.

When it comes to mating, guppies treasure their ugly friends - because they look so good by comparison.