“This study forecasted the percentage of MDR tuberculosis among incident cases of tuberculosis to increase, reaching 12·4% in India, 8·9% in the Philippines, 32·5% in Russia, and 5·7% in South Africa in 2040. It also predicted the percentage of XDR tuberculosis among incident MDR tuberculosis to increase, reaching 8·9% in India, 9·0% in the Philippines, 9·0% in Russia, and 8·5% in South Africa in 2040.
Acquired drug resistance would cause less than 30% of incident MDR tuberculosis during 2000-40. Acquired drug resistance caused 80% of incident XDR tuberculosis in 2000, but this estimate would decrease to less than 50% by 2040.
MDR and XDR tuberculosis were forecast to increase in all four countries despite improvements in acquired drug resistance shown by the Green Light Committee-supported programmatic management of drug-resistant tuberculosis. Additional control efforts beyond improving acquired drug resistance rates are needed to stop the spread of MDR and XDR tuberculosis in countries with a high burden of MDR tuberculosis.”
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