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CDC TB infection control guidelines.
Dooley SW; Division of Tuberculosis Elimination, Centers for Disease
December 30, 1995
Program Abstr Intersci Conf Antimicrob Agents Chemother. 1994 Oct

For many years, tuberculosis has been a recognized occupational hazard for health care workers. However, the advent of effective antituberculosis chemotherapy, the declining incidence of tuberculosis in industrialized countries, and the movement of tuberculosis treatment from inpatient facilities to the ambulatory setting all contributed to a substantial decrease in the risk of nosocomial transmission of Mycobacterium tuberculosis. More recently, M. tuberculosis has reemerged as a significant nosocomial pathogen. This has been most clearly demonstrated in a series of nosocomial outbreaks of multidrug-resistant tuberculosis involving patients and health care workers. Factors contributing to these outbreaks have included (1) convergence in health care facilities of persons with active, infectious tuberculosis and immunocompromised persons who are extremely vulnerable to tuberculosis if exposed and infected; (2) delayed recognition of patients with tuberculosis; (3) delayed initiation of effective antituberculosis chemotherapy and isolation for patients with infectious tuberculosis; (4) inadequate ventilation for TB isolation; (5) lapses in tuberculosis isolation practices; (6) inadequate precautions for cough-inducing procedures in patients with tuberculosis; and (7) inadequate management of tuberculosis patients following discharge from inpatient facilities. In response to this problem, the Centers for Disease Control and Prevention has revised its TB infection control guidelines to emphasize (1) administrative controls (e.g., early detection, isolation, and treatment of patients with infectious tuberculosis); (2) environmental controls (e.g., ventilation to reduce the concentration of airborne infectious particles); and (3) respiratory protection (e.g., use of respirators in a limited number of high-risk settings).

Human *Protective Devices Tuberculosis/*PREVENTION & CONTROL ABSTRACT