The 10 Most Horrifying Parasites that Infect Humans

10. Dicrocoelium Dendriticum

While Dicrocoelium Dendriticum is a relatively rare parasitic infection in humans, preferring to settle into the stomach of a cow or another animal out for a late night graze, the parasite is known to occasionally infect humans too. Also known as the Lancet Liver Fluke, the parasite’s initial host is an ant. In fact, ants seem to be the primary method of infection. There was even a case of a man who contracted Dicrocoelium Dendriticum from bottled water that was contaminated with infected ants. When one contracts the parasite, it settles in the bile ducts typically only causing mild symptoms like bowel disturbances. In more severe cases the Dicrocoelium Dendriticum parasite can become more harmful however, potentially swelling the tissue in the bile ducts, causing enlargement and inflammation of the liver. Even though Dicrocoelium Dendriticum is not common, it may still be wise to check your water bottle next time you take a drink.
10. Dicrocoelium Dendriticum