Context.—Recent studies suggest that many tuberculosis cases in urban areas result from
recent transmission. Delineation of the epidemiologic links between patients is important to
optimize strategies to reduce tuberculosis transmission. Objective.—To identify
epidemiologic links among recently infected urban patients with tuberculosis. Design.—
Prospective evaluation of patients with tuberculosis. Setting.—Central Los Angeles, Calif.
Patients.—A total of 162 patients who had culture-proven tuberculosis. Interventions …