The five countries that rank first to fifth in terms of total numbers of cases in 2007 are India (2.0 million), China (1.3 million), Indonesia (0.53 million), Nigeria (0.46 million) and South Africa (0.46 million). The TB in such high burdened countries usually affects members in their economic prime. Besides the loss of productivity, the cost of treating TB in such areas may involve mean household spending of as much as 8---20 percent of annual household income [29].
Reprinted with permission from World Health Organization. Global Tuberculosis Control 2009. Geneva: World Health Organization 2009.