As infections surge across much of the U.S., public health investigators are working to figure out how this microscopic ...

Cyclospora parasite behind diarrhea outbreak is only transmitted through human feces. So how did it get into our food supply?

Officials say there is a link between iceberg lettuce from Mexico and the rash of stomach parasite cases across the U.S.

Microplastics -- tiny pieces of plastic less than 5 mm in length -- are everywhere, from bottled water to food to air. According to recent estimates, people consume tens of thousands of these ...

Microplastics -- tiny plastic pieces less than 5 mm in size -- are everywhere, from indoor dust to food to bottled water. So it's not surprising that scientists have detected these particles in the ...