Diagram of The Life Cycle of Onchocerca Volvulus Poster

Onchocerca volvulus is a nematode that causes onchocerciasis or "river blindness" mostly in Africa. Long-term corneal inflammation, or keratitis, leads to thickening of the corneal stroma which ultimately leads to blindness. Humans are the only definitive host for O. volvulus. The intermediate host or vector is the black fly (Simulium). Onchocerca volvulus is one of four filarial nematodes that cause subcutaneous filariasis in humans. The other three filarial nematodes are Loa loa (the African eye worm), Mansonella streptocerca and Dracunculus medinensis (the guinea worm). Image reproduction rights can be found in the link near the bottom of this description. Sign up to Mr. Rebates for FREE and save 12% on any zazzle order in addition to a $5.00 sign up bonus All Rights Reserved; without: prejudice, recourse or notice (U.C.C. 1-308) Image Reproduction Rights: http://commons.wikimedia.org/wiki/File:Life_Cycle_of_Onchocerca_volvulus_PLoS_Medicine.svg parasite "Onchocerca Volvulus" nematode onchocerciasis "river blindness" keratitis Onchocerca volvulus "filarial nematodes" filariasis Mansonella streptocerca "Mansonella streptocerca" Dracunculus medinensis "Dracunculus medinensis" illness sickness medical "The Life Cycle of Onchocerca Volvulus" "Onchocerca Volvulus life cycle" "Onchocerca Volvulus lifecycle" "parasite life cycle" "parasite lifecycle" "parasite chart" "parasite diagram" "doctor chart" "doctor diagram" "medical chart" "medical diagram"