Multidrug-resistant tuberculosis (MDR-TB)

Overview

The latest anti-TB drug resistance surveillance data show that 3.5% of new and 18% of previously treated TB cases in the world are estimated to have multidrug-resistant or rifampicin-resistant tuberculosis (MDR/RR-TB).

In 2017, an estimated 558 000 new cases of MDR/RR-TB emerged globally. MDR/RR-TB caused 230 000 deaths in 2017. Most cases and deaths occurred in India and China.

About 8.5% of MDR-TB cases had extensively drug-resistant TB (XDR-TB).