China faces a "serious epidemic" of drug-resistant tuberculosis according to the first-ever nationwide estimate of the size of the problem there, said a new US-published study.
"In 2007, one third of the patients with new cases of tuberculosis and one half of the patients with previously treated tuberculosis had drug-resistant disease," said the study in the New England Journal of Medicine.
Even more, the prevalence of multi-drug resistant (MDR) TB in new cases (5.7 percent) was nearly twice the global average, said the study.
Using World Health Organization figures as a basis for comparison, "China has the highest annual number of cases of MDR tuberculosisin the world -- a quarter of the cases worldwide," it added.
"China has a serious epidemic of drug-resistant tuberculosis."
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