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Free Content In vitro activity of thiacetazone on mycobacterial species belonging to the Mycobacterium tuberculosis complex

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Thiacetazone, despite frequent side-effects, may still be considered for the treatment of new tuberculosis cases when there is a shortage of drugs and for the management of multidrug-resistant tuberculosis. Fifty-four strains of M. tuberculosis complex were characterised based on the minimum inhibitory concentration (MIC) of thiacetazone and the growth pattern in the presence of different concentrations of the drug. The results showed that the MIC of thiacetazone to type II M. africanum strains was significantly higher than for other strains in the study (P < 0.01). Thiacetazone showed a paradoxical effect on 63% of strains where lower concentrations exhibited a better inhibiting activity than higher concentrations.

Keywords: M. africanum; M. tuberculosis; MIC; thiacetazone

Document Type: Short Communication

Affiliations: 1: Armauer Hansen Research Institute, and Institute of Pathobiology, Addis Abeba, Ethiopia 2: Department of Bacteriology, Swedish Institute for Infectious Disease Control, Stockholm, Sweden

Publication date: October 1, 2002

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  • The International Journal of Tuberculosis and Lung Disease publishes articles on all aspects of lung health, including public health-related issues such as training programmes, cost-benefit analysis, legislation, epidemiology, intervention studies and health systems research. The IJTLD is dedicated to the continuing education of physicians and health personnel and the dissemination of information on tuberculosis and lung health world-wide.

    Certain IJTLD articles are selected for translation into French, Spanish, Chinese or Russian. They are available on the Union website

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