<unk>  is a parasitic disease caused by microscopic, thread-like worms. The adult worms only live in the human lymph system. The lymph system maintains the body's fluid balance and fights infections.<unk>  affects over 120 million people in 73 countries throughout the tropics and sub-tropics of Asia, Africa, the Western Pacific, and parts of the Caribbean and South America. You cannot get infected with the worms in the United States.
Filariasis
Toxocariasis
Helminthiasis
Leishmaniasis
Onchocerciasis
Isosporiasis
Schistosomiasis
Cyclosporiasis