HIV
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The breakdown of body immune system is the mark of the HIV infection. This makes AIDS patients susceptible to a variety of opportunistic infections. Tuberculosis is, unquestionably, the most important opportunistic infection complicating HIV infection in developing countries, and may occur at any stage in the course of 'immunodeficiency'. The degree of HIV infection is known to be greatest in sub-Saharan Africa, where as many as a third of all patients with tuberculosis are HIV infected. However, in other regions of the world, where the overall control of tuberculosis is not as high as in developing countries, the interaction between the two pathogens may also be a substantial problem. In regions such as the Western Pacific and South East Asia, data indicate that infections combining HIV and another are much less common than in Africa, although it is likely that the estimates are on the lower side because of under-reporting of HIV infection '. The United Nations Joint Program on HIV and AIDS (UNAIDS) estimated that 35 million adults and 1.4 million children were infected with HIV, worldwide, by end of 2000. An estimated 15 million adult AIDS deaths and 3.8 million pediatric deaths have occurred worldwide since the beginning of the pandemic...