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Free Content Survey of primary drug resistance of Mycobacterium tuberculosis in Casablanca, Morocco

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Abstract:

SETTING: In 1990, a 6-month short-course regimen (2 SHRZ/4 RH) was introduced for the treatment of tuberculosis in Morocco.

OBJECTIVE: To assess the efficacy of the national tuberculosis control programme, a prospective study of primary drug resistance was conducted from April 1992 to July 1994 in Casablanca.

DESIGN: A total of 402 strains isolated from 402 patients living in Casablanca with no previous history of tuberculosis was included in the study.

RESULTS: The overall rate of primary drug resistance to at least one drug was 23.9%; it was 19.7% to streptomycin, 11.4% to isoniazid, and 8.2% to both streptomycin and isoniazid. The rates of resistance to rifampicin and ethambutol were both less than 1%. The survey was divided into two periods of 14 months each. The rates of primary drug resistance increased from 21.1% to 27.6% during these two periods (Odds Ratio [OR] 1.43; 95% Confidence Interval [CI] 0.88 to 2.32); this increase occurred only for streptomycin (15.9% to 24.7%, OR 1.73; 95% CI 1.02 to 2.93).

CONCLUSION: The rate of primary drug resistance of Mycobacterium tuberculosis in Casablanca has risen in recent years to an ominous level. Urgent measures are needed in order to interrupt this trend.

Keywords: Casablanca; Mycobacterium tuberculosis; primary drug resistance; survey; tuberculosis

Document Type: Regular Paper

Affiliations: 1: Unité des Mycobactéries, Institut Pasteur du Maroc, Casablanca, Morocco 2: Service de Pneumophtisiologie, Hôpital 20 Août, Casablanca, Morocco

Publication date: 1997-08-01

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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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