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Slide Show: Tuberculosis a Silent Killer

Health officials are drawing attention to the 22 countries that contribute 80 percent of the global burden of tuberculosis on March 24, designated World TB Day.

Tuberculosis is a deadly infectious disease that can be transmitted through the air, making it particularly contagious in crowded cities and between family members. Read a post from Ray Suarez on the TB epidemic in South Africa and learn more about the experience of TB patients in India, Afghanistan and Brazil in the slide show below.

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