HIV is a virus, which attacks the immune system of the carrier. AIDS is a medical condition developed because of this damage to the natural defense against disease. There is no cure for AIDS. However, there are drugs that can slow down the damage to the immune system.
You can become infected through contact with bodily fluids, but not through ordinary physical contacts, sharing glasses/plates or mosquito bites.
Globally, around 33 million people are infected with HIV. Southern Africa accounts for almost a third of all new HIV infections and AIDS-related deaths globally. In this region alone, the epidemic has made 12 million children orphanes.