African-Americans and sexually transmitted diseases

While representing 12% of the U.S. population, blacks had about 70% of reported gonorrhea cases and almost half of all chlamydia and syphilis cases (48% and 46%respectively) in 2007. STDs take an especially heavy toll on black women 15 to 19 years of age, who account for the highest rates of both chlamydia (9,646.7 per 100,000 population) and gonorrhea (2,955.7 per 100,000 population) of any group.