The document provides information about AIDS/HIV in 3 paragraphs: 1) It defines AIDS as acquired immune deficiency syndrome caused by the HIV virus. It affects immune cells called CD4+ T cells. HIV was first reported in 1981 in the US. 2) Pediatric AIDS contributes to 15-20% of cases in developing countries. HIV can be transmitted from mother to child during pregnancy, delivery, or breastfeeding. By 2007, over 2 million children lived with HIV. 3) HIV attacks and destroys CD4+ T cells, weakening the immune system. If untreated, HIV progresses to AIDS. Common opportunistic infections in children with AIDS include Pneumocystis pneumonia and MAC (Mycobacterium