No, this is not true. Both HHV-6 and HIV infect the same kind of cells in a person's body. These cells are called CD4+ T cells (helper cells). However, AIDS will not develop in someone who is not infected with HIV. Infection with HHV-6 does not lead to infection with HIV. HHV-6, one of the eight known human herpes viruses, is common throughout the world, with over 90% of adults in many populations being infected. Most people are infected with HHV-6 between the ages of 6 months and 2 years old, soon after they lose their mother's antibodies. HHV-6 is the cause of roseola [ro ZEE o la], a usually mild childhood disease that is also called exanthem subitum [eg ZAN them SUBI tum] or sixth disease. Approximately 30% of all children get roseola, usually before 2 years of age.