
Americans who test positive for gonorrhea should now be treated with a shot, not just pills, the federal government said Thursday in a significant rewrite of the recommended treatment for the long-dreaded sexually transmitted disease.

U.S. high school students are often delaying sex, limiting their sexual activity and using condoms, but their risk for sexually transmitted diseases like HIV/AIDS remains too high, federal officials said Tuesday.

Black men who are gay or bisexual are "at the center" of the U.S. HIV/AIDS epidemic and should be a primary focus of testing, service and treatment efforts, a federal official and advocates said Wednesday.

Men who faithfully take a daily pill that contains drugs to treat HIV can reduce their risk of catching the deadly virus by up to 73 percent, the National Institutes of Health said in a study released Tuesday.