Blacks with a history of the chronic breathing disorder COPD have a far greater risk of developing lung cancer than whites who have the lung disease, U.S. researchers said Thursday. Read more »

The AIDS virus is especially hard to fight because few people develop antibodies to neutralize it, but U.S. researchers said Thursday they have found an immunity gene that may offer a new way to fight back. Read more »

Cancer patients across Europe face a longer wait for their diagnoses after a nuclear reactor in the Netherlands was shut down for safety reasons. Read more »

Alcohol-related causes such as liver disease and car crashes account for nearly 12 percent of American Indian and Alaska Native deaths, 3-1/2 times the figure for the overall population, officials said on Thursday. Read more »

An outbreak of an unusual strain of Salmonella that put 286 people into the hospital appears to be over in the United States, federal health officials said Thursday. Read more »

The head of Canada's biggest meat processor said Wednesday his company was fully accountable for a nationwide outbreak of listeriosis food poisoning, which has been linked to deaths of 15 people. Read more »

A new type of bird flu vaccine that uses a mock version of the virus appears to protect people against infection and is safe enough to continue testing, Novavax Inc. said Tuesday. Read more »

Parents refusing to have their children vaccinated against measles have helped drive cases of the illness to their worst levels in a dozen years in the United States, health officials reported Thursday. Read more »

A 61-year-old woman in central Japan has given birth to a surrogate child for her daughter, an obstetrician said Wednesday. Read more »

Stem cell scientists have developed a new and more accurate way of spotting aggressive forms of bowel cancer, allowing for tailored treatment that should improve patients' chances of survival. Read more »