Comparison of AIDS and HIV antibody surveillance data in Colorado

We compared cumulative surveillance data for AIDS (May 1982-December 1986) and persons with positive HIV antibody tests (July 1985-December 1986) to examine the adequacy of each surveillance system in directing public health disease control activities. Neither AIDS nor HIV antibody surveillance data alone described the total extent of HIV infection. The geographic distribution of persons with positive HIV antibody tests was more widespread than the distribution of AIDS cases for all demographic and transmission categories. Ideally, preventive efforts should be based on a comprehensive surveillance system that indicates all persons who are infectious with HIV.