Transmission and prevalence of drug-resistant tuberculosis in a brazilian setting under a directly observed therapy short-course strategy

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Abstract

Introduction: We aimed to estimate the prevalence and transmission of drug-resistant tuberculosis in a high-burden Brazilian setting under directly observed therapy short-course strategy. Methods: Isolates of culture-confirmed pulmonary tuberculosis patients from Guarulhos, Brazil, diagnosed in October 2007–2011 were subjected to drug susceptibility and IS6110–restriction fragment length polymorphism testing. Results: The overall resistance prevalence was 11.5% and the multi-drug resistance rate was 4.2%. Twenty-six (43.3%) of 60 drug-resistant isolates were clustered. Epidemiological relationships were identified in 11 (42.3%) patients; 30.8% of the cases were transmitted in households. Conclusions: Drug-resistant tuberculosis was relatively low and transmitted in households and the community.

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Latrilha, F. O., Simonsen, V., Pinhata, J. M. W., Brandão, A. P., Galesi, V. M. N., Waldman, E. A., & Ferrazoli, L. (2020). Transmission and prevalence of drug-resistant tuberculosis in a brazilian setting under a directly observed therapy short-course strategy. Revista Da Sociedade Brasileira de Medicina Tropical, 53, 1–7. https://doi.org/10.1590/0037-8682-0404-2019

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