It’s been thirty years since the first drug was approved to treat HIV/AIDS. That was AZT, in 1987. Since then, anti-retroviral drugs have been helping people live longer, healthier lives after their diagnosis. But just how much has treatment changed? There's still no cure, and Philip Chan, a physician and HIV researcher at Brown University, says prevention remains a challenge. If current diagnosis rates continue, 1 in 6 gay and bisexual men will be diagnosed with HIV in their lifetime. But there