<unk> <unk>  is the<unk> l nematode (roundworm) species that causes<unk> sis.  Its geographic distribution includes Africa and India.
L.<unk>  is one of three parasitic<unk> l nematodes that cause subcutaneous<unk> sis in humans.  The two other<unk> l nematodes are Mansonella streptocerca and Onchocerca volvulus (causes river blindness).
Maturing larvae and adults of the eye worm occupy the subcutaneous layer of the skin ; the fat layer; of humans, causing disease. The young larvae develop in horseflies of the genus Chrysops (deer flies, yellow flies), including the species C. dimidiata and C. silacea, which infect humans by biting them.
Loa loa filaria
Oesophagostomum
Schistosoma
Schistosoma mansoni
Onchocerca volvulus
Wuchereria bancrofti
Hookworm
Trichuris trichiura