Tuberculosis--a continuing problem.
D001500:BCG Vaccine; D006280:Health Workforce; D006801:Humans; D007538:Isoniazid / Q000627:therapeutic use*; D009784:Occupational Diseases / Q000517:prevention & control*; D012306:Risk; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000517:prevention & control*; D014481:United States
D001500:BCG Vaccine; D007538:Isoniazid