Multidrug-resistant tuberculosis in Uzbekistan: results of a nationwide survey, 2010 to 2011.

Multidrug-resistant tuberculosis (MDR-TB; resistance to at least rifampicin and isoniazid) is a global public health concern. In 2010–2011, Uzbekistan, in central Asia, conducted its first countrywide survey to determine the prevalence of MDR-TB among TB patients. The proportion of MDR-TB among new and previously treated TB patients throughout the country was measured and risk factors for MDR-TB explored.