Update: acquired immunodeficiency syndrome--United States, 1994.

During 1994, state, local, and territorial health departments reported to CDC 80,691 cases of acquired immunodeficiency syndrome (AIDS) among persons in the United States, which followed the 106,618 cases reported in 1993. The number of cases reported in each of these years was greater than that reported in 1992 (47,572) and followed the expansion of the AIDS surveillance case definition for adolescents and adults implemented on January 1, 1993 (1-3). Based on analyses using consistent definitions, the rate of AIDS-related illnesses increased 3% in 1993 compared with 1992; a similar increase is expected for 1994 compared with 1993 (3). This report summarizes the characteristics of AIDS cases reported in 1994 and compares these findings with those in 1993.