1993 Revised Classification System for HIV Infection and Expanded Surveillance Case Definition for AIDS Among Adolescents and Adults

This report contains CDC's revised classification system for HIV infection and AIDS among adolescents and adults. The definition replaces the system published by CDC in 1986 and contains the expanded AIDS surveillance case definition. Appendixes include equivalences for CD4+ T-lymphocyte count and percentage of total lymphocytes, conditions included in the 1993 AIDS surveillance case definition, definitive diagnostic methods for diseases indicative of AIDS, and suggested guidelines for presumptive diagnosis of diseases indicative of AIDS.