Environmental Control of Tuberculosis: Continuing Controversy

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Abstract
The incidence of tuberculosis—and, more important, that of multidrug-resistant tuberculosis —have risen drastically in the past decade. Nosocomial outbreaks have alerted health-care workers to the hazards of the spread of tuberculosis. The use of environmental control modalities (e.g., ventilation, air filtration, and ultraviolet irradiation) and personal protective devices has been explored in the medical, legislative, and public forums. New regulations and legislation have created controversy over the recommendations and their interpretation. In this review we present the theory behind the rational selection of environmental-control modalities and personal protective devices. We also offer suggestions about the application of specific control techniques and the revision of existing facilities to comply with new standards.

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