About 50 percent of adolescents born HIV-positive may be at increased risk for heart disease, including stroke and heart attack, later in life, according to a National Institutes of Health study led by Harvard School of Public Health researchers. While previous studies linked HIV infection severity and certain HIV drugs to cardiovascular disease (CVD) in adults, this is the first to evaluate overall risk for CVD in teens infected with HIV since birth. The study appears in the March 2014 print edition of Circulation.