HIV

Some drug users in Philadelphia are reselling syringes they get for free at needle exchanges. That's illegal, but researchers say the practice still helps prevent the spread of diseases like HIV.

The FDA recommends overturning a lifetime ban on blood donations by men who have sex with men. It's the right solution, but it still won't help me donate.

In parts of southern Africa, HIV has picked up mutations that slow down its ability to grow inside a person's blood. That's a good sign. But will it be enough to make a difference in the epidemic?

The Centers for Disease Control and Prevention says only a third of Americans infected with HIV have the virus under control. Most have been diagnosed, though that's less common among the young.

African women signed up for a trial to test pills and gels that can prevent HIV. They swore they were complying. Only they weren't. Reasons range from conspiracy theories to ... skin care.

Gov. Andrew Cuomo is supporting the drug Truvada as part of the state's ambitious plan to fight AIDS. But some advocates worry it will encourage risky behavior or won't reach the most vulnerable.