1. Pulmonary tuberculosis : Prevention  (Trust Mark: Doctor-Reviewed)
TB is a preventable disease, even in those who have been exposed to an infected person. Skin testing (PPD) for TB is used in high risk populations or in people who may have been exposed to TB, such as health care workers. A positive skin test indi...• Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Jatin M. Vyas, PhD, MD, Instructor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Tuberculosis : Prevention  (Trust Mark: Doctor-Reviewed)
Vaccination is widely used as a prevention measure for TB. A vaccine called BCG (Bacillus Calmette-Guerin, named after its French developers) is made from a weakened mycobacterium that infects cattle. Vaccination with BCG does not prevent infectio...• Author: Amy Cooper, Teresa G. Odle, Rebecca J. Frey PhD