... contributions made to this paper by Webster Kasongo and David Mwakazanga at the Tropical Diseases Research Centre, Zambia in study coordination and data analysis, respectively Finally, the authors thank ... Ministry of Health, Zambia 2006, Antenatal Clinic Sentinel Surveillance Survey, Lusaka, Zambia, 2009 P Bifani, B Mathema, N Kurepina et al., “The evolution of drug resistance in Mycobacterium tuberculosis: ... because of their comparatively low population catchment areas at the time All sputum smear-positive TB patients aged 15 years and above were included, whereas children below the age of 15 years...