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 only seen in returning travelers, is gaining a "firm foothold" in the southern United States, scientists warn. Experts have also raised concerns that a life-threatening form ...

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 ...

Sand flies are tiny tan flies — about the quarter of the size of a mosquito — that live in warm areas, usually those that are rural and forested. In other parts of the world, they are known to ...