A disease caused by infection with freshwater parasitic worms in certain tropical and subtropical countries.

The parasite can be found in subsaharan Africa, the Middle East, Southeast Asia, and the Caribbean. The freshwater becomes contaminated from infected animal or human urine or feces. The parasites penetrate human skin to enter the bloodstream and migrate to the liver, intestines, and other organs.

A rash, itchy skin, fever, chills, cough, headache, belly pain, joint pain, and muscle aches are symptoms.