Fig. 1From: Pyrazinamide resistance-conferring mutations in pncA and the transmission of multidrug resistant TB in GeorgiaFlowchart of available information. XDRÂ =Â extensively drug resistant, MDRÂ =Â multidrug resistant tuberculosis, INH-RÂ =Â isoniazid monoresistant, STR-RÂ =Â streptomycin mono resistant. a = [30]Back to article page