The current recommended treatment approach for MDR-TB is based largely on expert opinion and there is a lack of good evidence on optimal management. The World Health Organisation (WHO) guidelines for the treatment for MDR-TB recommends an intensive phase of treatment based on at least four drugs known to be effective and given for a minimum of 20 months. However, evaluation of the treatment success of such regimens in 9 countries varied from 25% to 73%. Van Deun et al (2010) reported excellent long-term outcomes in a cohort of over 200 patients in Bangladesh with MDR-TB who were treated with a regimen given for only nine months.