A potent weapon in the battle against HIV: your own immune system

The goal of HIV vaccines is to teach the immune system new and hopefully better ways to win the battle against the virus. There are different types of immune responses, those we were born with (innate immunity) and those we "learn" (acquired immunity). HIV vaccines exploit the side of the immune system that is learned (acquired) by providing information to cells in new ways in hopes of enhancing their learning and making them more effective fighters.