... in TB control in 1993 and has offi-cially reported 100% DOTS coverage in all nine pro-vinces since 2003 [3]. A good functioning primaryhealth care system is crucial in the implementation of DOTS. ... Belgium.4Ministry of Health, National Tuberculosis and LeprosyProgram, Lusaka, Zambia.5 Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and InfectiousDiseases, ... Zambia.2Institute of Tropical Medicine, Department of Microbiology, Mycobacteriology Unit, 2000, Antwerp, Belgium.3Institute of Tropical Medicine, Department of Parasitology, Helminthol ogy...