Original Article

Risk-Based Screening for Latent Tuberculosis Infection

Background: National guidelines recommend targeted tuberculin testing and treatment of latent tuberculosis infection (LTBI) among high-risk groups but discourage testing low-risk persons. Methods: We determined the LTBI prevalence (tuberculin skin test [TST] reaction ≥10 mm) among adults with and without TB exposure risk factors screened in Tennessee from 1/2/2002 to…