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  • Title: Risk of occupational tuberculosis in National Tuberculosis Programme laboratories in Korea.
    Author: Kim SJ, Lee SH, Kim IS, Kim HJ, Kim SK, Rieder HL.
    Journal: Int J Tuberc Lung Dis; 2007 Feb; 11(2):138-42. PubMed ID: 17263282.
    Abstract:
    SETTING: Mycobacteriology laboratories in the National Tuberculosis Control Programme in Korea. OBJECTIVES: To determine tuberculosis (TB) risk by type of work among laboratory workers compared to non-laboratory workers. DESIGN: Retrospective study of TB incidence among technicians involved in acid-fast bacilli smear microscopy or culture and/or drug susceptibility testing (DST) compared with that among managerial/clerical workers. RESULTS: Two cases developed among 77 non-laboratory workers, two among 88 smear microscopy technicians, and 11 among 76 culture/DST technicians during the observation period. Compared to non-laboratory workers, the relative risk of TB was 1.4 (95% CI 0.2-10.0) among microscopy technicians and 7.8 (95% CI 1.7-34.9) among culture/DST technicians. TB developed among 7/15 DST technicians compared to only 2/59 culture/non-DST technicians. Compared to non-laboratory workers, the relative risk for DST technicians was 21.5 (95% CI 4.5-102.5). CONCLUSION: DST led to the highest relative risk among all types of mycobacteriology work, while performing smear microscopy alone did not pose an elevated risk compared to clerical work.
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