Chagas, 'kissing bug' disease, worries U.S. health officials

November 5, 2014 4:27 PM

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Researchers called the disease a "silent killer."

Chagas disease -- called a silent killer because the parasitic infection is difficult to detect at its onset, with few to no symptoms -- has mostly been considered a problem confined to Latin America. But health officials are increasingly worried the disease is globalizing.

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