Some people online believe many of us have dangerous parasites in our gut and need to flush them out with herbal supplements.

Nearly 850 species of parasites are known to infect people; some, like the potentially deadly plasmodium parasite that causes ...

Entamoeba histolytica infects nearly 50 million people each year and kills around 70,000. It’s a shape-shifting parasite that invades the human gut, often causing mild symptoms like diarrhea. But in ...