Tuberculosis in the tropics

Until recently tuberculosis was considered a well controlled disease, at least in developed countries. In developing countries, more than seven million people are affected by active tuberculosis. This situation is exacerbated by poor infrastructure to support tuberculosis control measures and the interaction between tuberculosis and infection with the human immunodeficiency virus. The three major strategies for controlling tuberculosis remain BCG vaccination in children, appropriate preventive therapy and, most importantly, reducing the sources of infection through case finding and curative treatment. Research and resources to improve on these strategies should be given high priority by the international health community.