Will there ever be an HIV vaccine?

Will there ever be an HIV vaccine?
While the human immunodeficiency viruses are thought to have emerged in West Africa in the early 20th century, they weren’t picked up upon until the early 80s when outbreak clusters began to appear among gay men in the US. Decades later, modern medicine has transformed the virus from a death sentence into a manageable chronic condition – but there’s still no way to vaccinate against the disease. Chloe Kent reports.