This week marked 30 years since the public announcement that the cause of AIDS had been discovered. But how close are we to defeating HIV? And what sort of vaccine will help us to do this? Well there are a number of different approaches to the creation of a HIV vaccine, some of which look to stop patients from contracting HIV when exposed to the virus, others are looking for a therapeutic vaccine that will act at the very least as a functional cure for HIV+ patients.
Here are some of the different techniques being employed in the development of a HIV vaccine and some of the vaccines that have come out of them.