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 ...

Parasites are organisms that feed off their hosts for survival. Such parasitic creatures can cause mild to serious symptoms and, in some cases, fatal infections in their hosts. “Overall, parasites ...

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 ...

Leishmaniasis is an infection from Leishmania parasites. It is transmitted through the bite of sand flies that have the parasite. An infection can be cutaneous, mucosal, or visceral. There are 1.5 to ...

Parasitic diseases, which are passed on to people via parasites found in contaminated food, water, soil or bugs that bite humans, can be relatively uncommon in some parts of the world. In other ...