Centers for Disease Control

The Indiana man who became the first in the country to be sickened by MERS is improving. He was diagnosed last week after returning to the United States from Saudi Arabia, where he was a health care worker. No other cases have been reported.

There may be  a link between childhood leukemia and how much vehicle exhaust a young child is exposed to.

Massachusetts is getting poor marks on how much it spends on preventing children from taking up smoking and helping adult smokers quit. A coalition of groups, including the Campaign for Tobacco-Free Kids, says the state ranks 36th in the nation in funding anti-smoking programs. Massa...