On the heels of the news of totally drug-resistant (TDR) TB being identified in India — and disavowed, unfortunately, by the Indian government — the World Health Organization has released an update on the background situation of drug-resistant TB around the world.
This new WHO report is primarily concerned with MDR and XDR. It says that MDR-TB has now been identified in 80 countries; XDR TB has been found in 77. The meat of the report, though, is in these numbers; overall:
19.8 percent of MDR patients were previously treated for TB.
3.4 percent were never treated for TB before.
9.4 percent of all resistant cases are XDR.
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