Because immunosuppression induced by human immunodeficiency virus (HIV) infection increases the likelihood that latent tuberculosis (TB) infection will become active in HIV-infected persons (1,2), in 1987, extrapulmonary or disseminated TB was added to the acquired immunodeficiency syndrome (AIDS) surveillance case definition (3), and in 1993, pulmonary TB in HIV-infected persons was added to the case definition (4). In Florida and other areas (5), AIDS surveillance activities include assessment of the completeness and validity of reported cases based on confidential record linkages with the TB registry and other disease registries. In December 1993, the Florida Department of Health and Rehabilitative Services (HRS) matched cases from the AIDS and TB registries to verify documented TB data, include more complete TB data on the AIDS registry, and identify cases from the AIDS registry with unreported TB. This report summarizes an analysis of this match, which underscored the need for collaboration and crosstraining of surveillance staff in AIDS and TB reporting.