New World screwworm was largely eradicated from the U.S. and Central America in the 1960s and 1980s, respectively. But the ...

When an infected fly bites a person, it regurgitates this plug, thereby injecting its saliva and the parasite-containing gel into the person's skin. Rogers and his colleagues determined that in ...

When the mosquito bites a victim ... But some egg-laying parasites go more than just skin deep. Tapeworms, for example, invade your intestines. Adults can stretch longer than a bowling lane ...

Amanda MacMillan is a health and science writer and editor. Her work appears across brands like Health, Prevention, SELF, O Magazine, Travel + Leisure, Time Out New York, and National Geographic's ...