Medicines that ight HIV have helped many people with HIV and AIDS live years and even decades longer than was possible in the past, before effective treatment was available. HIV treatments are not a cure, and they do not work equally well for everyone, but they have extended the lives of many people with HIV and AIDS.

Without treatment, some people live for just a few years after getting HIV. Others live much longer. Researchers are studying a small number of people with HIV who have not become ill for more than ten years, even without any HIV treatment. However, these people are still infected with HIV and can pass the virus to others.