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 ...

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 four-year-old girl had multiple black spots on her arms and the legs. The spots seemed to disfigure the girl and they itched badly, forcing her mother to take her to several hospitals in search of ...

Researchers made a surprising finding while examining areas where sand flies rear their young: a new species of bacteria that is highly attractive to pregnant sand flies. The findings could advance ...

Experts say sand flies, technically called biting midges, speed up their reproductive cycle when temperatures soar, as they did during last week's record heatwave. As Victorians flocked to the beach ...