It's a Russian nesting doll of sorts: Parasitic bugs that live in the human gut have their own set of gut bugs inside their intestines.
An Australian teenager who ate a garden slug on a dare was infected by a parasite that caused a debilitating brain disease, leaving him paralyzed from the neck down.
At a university hospital in the Netherlands, 17 students have a tropical parasitic disease.
A strange plant that needs no sunlight and sucks on underground fungi for nutrients has turned up in Borneo, Malaysia, 151 years after the last time a scientist found it.
A 26-year-old woman in Oregon made a horrifying discovery: Her eyes were infected with small, translucent eye worms.
A Canadian couple is warning travelers about the risks of going shoeless on the beach after the pair returned from a Caribbean trip with hookworms in their feet.
If you've ever sipped some untreated tap water while you were abroad on vacation, you may have returned home with an unexpected souvenir: diarrhea.
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