In this episode of Px Pulse we take a look at one issue that was center-stage at the recent AIDS 2018 conference in Amsterdam: Preventing new HIV infections.

Hear Brad Jones of Weill Cornell Medical College pose a basic question about T cells and what his research could teach us about the immune system. Advocate Dorothy Okatch of the NGO Young 1ove sizes up the challenges for prevention in her country Botswana, where gains in treatment have been lauded. But first, we talk to the head of PEPFAR (the US President’s Emergency Plan for AIDS Relief), Ambassador Deborah Birx, who oversees one of the biggest programs for HIV/AIDS in the world.