AIDS is not a virus but a set of symptoms (or syndrome) caused by the HIV virus. A person is said to have AIDS when their immune system is too weak to fight off infection, and they develop certain defining symptoms and illnesses. This is the last stage of HIV, when the infection is very advanced, and if left untreated will lead to death.
Basic facts about AIDS
Although there is currently no cure for HIV with the right treatment and support, people with HIV can live long and healthy lives. To do this, it is especially important to take treatment correctly and deal with any possible side-effects.
If you are HIV positive during sex diseases transmitted, that can infect your partner body. A condom acts as a barrier or wall to keep blood, or semen, or vaginal fluids from passing from one person to the other during sex. so safe sex can prevent AIDS.