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A correction has been published: N Engl J Med 1998;339(2):139.

Original Article
Volume 338:1641-1649 June 4, 1998 Number 23
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Global Surveillance for Antituberculosis-Drug Resistance, 1994–1997
Ariel Pablos-Méndez, M.D., M.P.H., Mario C. Raviglione, M.D., Adalbert Laszlo, Ph.D., Nancy Binkin, M.D., M.P.H., Hans L. Rieder, M.D., M.P.H., Flavia Bustreo, M.D., M.P.H., David L. Cohn, M.D., Catherina S.B. Lambregts-van Weezenbeek, M.D., Ph.D., Sang Jae Kim, Sc.D., Pierre Chaulet, M.D., Paul Nunn, M.D., for The World Health Organization–International Union against Tuberculosis and Lung Disease Working Group on Anti-Tuberculosis Drug Resistance Surveillance

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ABSTRACT

Background Drug-resistant tuberculosis threatens efforts to control the disease. This report describes the prevalence of resistance to four first-line drugs in 35 countries participating in the World Health Organization–International Union against Tuberculosis and Lung Disease Global Project on Anti-Tuberculosis Drug Resistance Surveillance between 1994 and 1997.

Methods The data are from cross-sectional surveys and surveillance reports. Participating countries followed guidelines to ensure the use of representative samples, accurate histories of treatment, standardized laboratory methods, and common definitions. A network of reference laboratories provided quality assurance. The median number of patients studied in each country or region was 555 (range, 59 to 14,344).

Results Among patients with no prior treatment, a median of 9.9 percent of Mycobacterium tuberculosis strains were resistant to at least one drug (range, 2 to 41 percent); resistance to isoniazid (7.3 percent) or streptomycin (6.5 percent) was more common than resistance to rifampin (1.8 percent) or ethambutol (1.0 percent). The prevalence of primary multidrug resistance was 1.4 percent (range, 0 to 14.4 percent). Among patients with histories of treatment for one month or less, the prevalence of resistance to any of the four drugs was 36.0 percent (range, 5.3 to 100 percent), and the prevalence of multidrug resistance was 13 percent (range, 0 to 54 percent). The overall prevalences were 12.6 percent for single-drug resistance (range, 2.3 to 42.4 percent) and 2.2 percent for multidrug resistance (range, 0 to 22.1 percent). Particularly high prevalences of multidrug resistance were found in the former Soviet Union, Asia, the Dominican Republic, and Argentina.

Conclusions Resistance to antituberculosis drugs was found in all 35 countries and regions surveyed, suggesting that it is a global problem.


Source Information

From the Global Tuberculosis Program, World Health Organization, Geneva (A.P.-M., M.C.R., F.B., P.C., P.N.); the Divisions of General Medicine and Epidemiology, Columbia University, New York (A.P.-M.); the International Union against Tuberculosis and Lung Disease, Paris (A.L., H.L.R.); the Laboratory Center for Disease Control, Ottawa, Ont., Canada (A.L.); the Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta (N.B.); the Denver Public Health Department and the University of Colorado Health Sciences Center, Denver (D.L.C.); the Royal Netherlands Tuberculosis Association, The Hague (C.S.B.L.-W.); and the Korean Institute of Tuberculosis, Seoul (S.J.K.).

Address reprint requests to Dr. Pablos-Méndez at the Division of General Medicine, Columbia College of Physicians and Surgeons, 622 W. 168th St., PH-9E-105, New York, NY 10032.

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Related Letters:

Antituberculosis-Drug Resistance
Chan-Tack K. M., Diaz J. F., Geerligs W. A., van Altena R., van der Werf T. S., Pablos-Méndez A., Raviglione M. C., Nunn P.
Extract | Full Text  
N Engl J Med 1998; 339:1079-1080, Oct 8, 1998. Correspondence

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