Job-related risk of latent tuberculosis infection in a homogeneous population of hospital workers in a low incidence area.

Background: Few comprehensive tuberculin surveys were carried out in a homogeneous population of health care workers (HCWs) in a low incidence area to assess the risk of tuberculosis (TB) infection by different occupational groups and units.

Methods: Community and occupational factors and tuberculin skin test (TST) reactivity were determined in 1,755 HCWs.

Results: The overall prevalence of tuberculin reactivity was 6%.