Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: IMPAACT P1073: Study Of Immune Reconstitution Inflammatory Syndrome (IRIS) For International Sites Initiating Highly Active Antiretroviral Therapy (HAART) In Infants And C
Brief Summary: Your child is able to participate in this study, if your child's doctor is planning to start your child on HAART (which is a combination of at least 3 anti HIV drugs). When your child is treated with HAART, the way your child's body is able to fight infection may change. The immune system is the body's defense against infection. Your child's immune system may respond in a stronger way to some types of infections that your child may already have. This immune response may cause your child to become sick and the condition is then called "immune reconstitution inflammatory syndrome" or IRIS.