Here's a lingering public health mystery: Heterosexual black women in Philadelphia are at higher risk of contracting HIV than their white counterparts. But no one can yet say exactly why - or how to fix the problem. It's probably not behavior: Studies indicate that African American women have fewer sexual partners and are more likely to use condoms than white women from similar economic backgrounds. And they are not members of the highest-risk demographic: gay and bisexual men.
Published: Sunday, October 15, 2017