Which organism causes river blindness?

Answer 1

onchocerca vulvulus

Answer 2

I never heard of this until I looked it up. Here is what I found:

Generality/Definition (http://www.provisu.ch/PROVISU/Structure/C03.300.562_en.html)

* Listen / Stop:
River Blindness, or Onchocerciasis, is the world's second leading cause of blindness. It is a parasitic disease caused by a parasitic worm (Onchocerca volvulus) that can live in the human body for up to 14 years. The larval forms of these parasitic worms are introduced in the human body, as well as transmitted from a sick person to a healthy one, via the bite of infected blackflies (Simulium) that live and breed in fast flowing rivers because of their highly oxygenated water. Once the thousands of microfilariae (microscopic larvae) produced by the female worm spread throughout the body and reach the eye they can cause a variety of conditions including serious visual impairment and blindness.
Source: River Blindness (uniteforsight.org)

From the girls at http://www.mygurlstuff.com - The 757's Premier Website for Teen Girls

Answer 3

river blindness is the world's second leading infectious cause of blindness. It is caused by Onchocerca volvulus, a Parasitic worm that can live for up to fourteen years in the human body.

Answer 4

I thought it was a schistosome.