Most mammals produce their own vitamin C using an enzyme called GULO. Around 60 million years ago, humans lost this ability, ...

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 ...

(CNN) — 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 ...

The first human case of a deadly, flesh-eating parasite called “new world screwworm” has been detected in the United States, according to the Department of Health and Human Services. According to ...