... Professor of Pediatrics Department of PediatricsBaylor College of MedicineHouston, TXEX-CHAIRPERSONCharles M. Nolan, M.D.*Director, Tuberculosis Control Seattle-King County Department of ... results of 14 clinical trials and 12 case- control studies (41 ). The meta-analysts used a random-effects regression model toexplore the sources of the heterogeneity in the efficacy of the ... potentially transmit M. tuberculosis to HCWs, patients, volun-teers, and visitors in the health- care facility.The preferred strategies for the prevention and control of TB in health- care facilitiesare...