1.Sepkowitz, KA. Tuberculosis and the health care worker: a historical perspective. Ann Intern Med 1994;120:719
2.Centers for Disease Control. Nosocomial transmission of multidrug-resistant tuberculosis to HCWs and HIV-infected patients in an urban hospital: Florida. MMWR 1990;39:718–722.
3.Centers for Disease Control. Nosocomial transmission of multidrug-resistant tuberculosis among HIV-infected persons: Florida and New York, 1988-1991. MMWR 1991;40:585–591.
4.Snider, DE JrDooley, SW. Nosocomial tuberculosis in the AIDS era with an emphasis on multidrug-resistant disease. Heart Lung 1993;22:365–369.
5.Jarvis, WR. Nosocomial transmission of multidrug-resistant Mycobacterium tuberculosis. Res Microbiol 1993;144:117–122.
6.Jereb, JA, Klevens, RM, Privett, TD, et al.Tuberculosis in health care workers at a hospital with an outbreak of MDR Mycobacterium tuberculosis. Arch Intern Med 1995;155:854–859.
7.Ikeda, RM, Birkhead, GS, DiFerdinando, GR, et al.Nosocomial tuberculosis: an outbreak of a strain resistant to seven drugs. Infect Control Hosp Epidemiol 1995;16:152–159.
8.Zaza, S, Blumberg, HM, Beck-Sague, C, et al.Nosocomial transmission of Mycobacterium tuberculosis: role of health care workers in outbreak propagation. J Infect Dis 1995;172:1542–1549.
9.World Health Organization. Guideline for the Prevention of Tuberculosis in Health Care Facilities in Resource-Limited Settings. Geneva: World Health Organization; 1999.
10.Tan, LH, Kamarulzaman, A, Liam, CK, Lee, TC. Tuberculin skin testing among healthcare workers in the University of Malaya Medical Centre, Kuala Lumpur, Malaysia. Infect Control Hosp Epidemiol 2002;23:584–590.
11.The Republic of Turkey Ministry of Health. Statistics of Tuberculosis in Turkey, 2001. Ankara, Turkey: The Republic of Turkey Ministry of Health; 2001. Available at www.saglik.gov.tr/istatistik.htm. Accessed on January 1, 2003.
12.Cuhadaroglu, C, Erelel, M, Tabak, L, Kilicaslan, Z. Increased risk of tuberculosis in health care workers: a retrospective survey at a teaching hospital in Istanbul, Turkey. Biomedcentral Infectious Disease 2002;2:14.
13.Kilinc, O, Ucan, ES, Cakan, MD, et al.Risk of tuberculosis among health care workers: can tuberculosis be considered as an occupational disease? Respir Med 2002;96:506–510.
14.Centers for Disease Control and Prevention. Guidelines for preventing the transmission of Mycobacterium tuberculosis in health-care facilities, 1994. MMWR 1994;43(RR-13):1–132.
15.Zhang, J, Yu, KF. What's the relative risk? JAMA 1998;280:1690–1691.
16.Uçan ES ve ark. Evaluation of tuberculin skin test. Journal of Thorax 2000;1:25–29.
17.Thompson, NJ, Glassroth, JL, Snider, DE, Farer, LS. The booster phenomenon in serial tuberculin skin testing. Am Rev Respir Dis 1979;119:587–597.
18.Sepkowitz, KA, Feldman, J, Louther, J, Rivera, P, Villa, N, DeHovitz, J. Benefit of two-step PPD testing of new employees at a New York City hospital. Am J Infect Control 1997;25:283–286.
19.Menzies, RI, Vissandje, B, Rocher, I, St. Germain, Y. The booster effect in two-step tuberculin testing among young adults in Montreal. Ann Intern Med 1994;120:190–198.
20.Hallak, KM, Schenk, M, Neale, AV. Evaluation of the two-step tuberculin skin test in health care workers at an inner-city medical center. J Occup Environ Med 1999;41:393–396.
21.Sherman, RA, Shimoda, KJ. Tuberculosis tracking: determining the frequency of the booster effect in patients and staff. Am J Infect Control 2001;29:7–12.
22.Larsen, NM, Biddle, CL, Sotir, MJ, White, N, Parrott, P, Blumberg, HM. Risk of tuberculin skin test conversion among health care workers: occupational versus community exposure and infection. Clin Infect Dis 2002;35:796–801.
23.Plitt, SS, Soskolne, CL, Fanning, EA, Newman, SC. Prevalence and determinants of tuberculin reactivity among physicians in Edmonton, Canada: 1996-1997. Int J Epidemiol 2001;30:1022–1028.
24.Warren, DK, Foley, KM, Polish, LB, Seiler, SM, Fraser, VJ. Tuberculin skin testing of physicians at a midwestern teaching hospital: a 6-year prospective study. Clin Infect Dis 2001;32:1331–1337.
25.Porteous, NB, Brown, JP. Tuberculin skin test conversion rate in dental health care workers: results of a prospective study. Am J Infect Control 1999;27:385–387.
26.Panlilio, AL, Burwen, DR, Curtis, AB, et al.Tuberculin skin testing surveillance of HCWs. Clin Infect Dis 2002;35:219–227.
27.Do, AN, Limpakarnjarat, K, Uthaivoravit, W, et al.Increased risk of Mycobacterium tuberculosis infection related to the occupational exposures of health care workers in Chiang Rai, Thailand. Int J Tuberc Lung Dis 1999;3:377–381.
28.Garcia-Garcia, ML, Jiminez-Corona, A, Jiminez-Corona, ME, et al.Factors associated with tuberculin reactivity in two general hospitals in Mexico. Infect Control Hosp Epidemiol 2001;22:88–93.
29.Alonso-Echanove, J, Granich, RM, Laszlo, A, et al.Occupational transmission of Mycobacterium tuberculosis to health care workers in a university hospital in Lima, Peru. Clin Infect Dis 2001;33:589–596.
30.Templeton, GL, Illing, LA, Young, L, Cave, D, Stead, WW, Bates, JH. The risk for transmission of Mycobacterium tuberculosis at the bedside and during autopsy. Ann Intern Med 1995;122:922–925.
31.Institute of Medicine. Tuberculosis in the Workplace. Washington, DC: National Academy Press; 2001:24–27.