Scientists have new evidence that a tropical disease once seen almost exclusively in returning travelers is now being detected in the United States in people with no international travel history—and caused by a Leishmania parasite strain that's distinctly different from "imported" cases, according to an analysis from researchers at the U.S. Centers for Disease Control and Prevention (CDC) presented today at the Annual Meeting of the American Society of Tropical Medicine and Hygiene (ASTMH).

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