As the world reflects on the numbers of HIV infected persons from last week's World Aids Day, there are more HIV prevention interventions available now than ever before. Thirty-seven million people have HIV across the world. Vaginal rings, condoms and PrEP, a one-a-day tablet that can prevent the contraction of HIV are just some of these. But, scientists remain hard at work for an HIV vaccine. Minoshni Pillay revisited the ground-breaking HIV vaccine trial- known as HVTN 702 - at the South African Medical Research Centre site in Verulam, and filed this report...