Multidrug-Resistant Tuberculosis (MDR TB)

This information sheet discusses multidrug-resistant TB (MDR TB), a strain of TB that is resistant to at least two of the best anti-TB drugs, isoniazid and rifampicin. It describes TB disease, MDR TB, extensively drug resistant TB (XDR TB), TB transmission, how drug resistance happens, and who is at risk for getting MDR TB. The information sheet also explains how MDR TB can be prevented, TB vaccine, the symptoms of TB disease, and what an individual should do after being exposed to someone with TB.