Scientists with the CDC report that they've detected the tropical, flesh-eating parasite leishmaniasis in patients who haven't traveled outside the country Brenton Blanchet is an Associate Editor on ...

Move over mosquitos. There’s another blood-sucking biter Americans need to guard against because it can spread disease: the sand fly. Sand flies are tiny tan flies — about the quarter of the size of a ...

A tropical disease once seen almost exclusively in returning travelers is now being detected in Texas and the south in people with no international travel history — caused by a parasite strain that’s ...