OnchocerciasisOnchocerciasis
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What Wikipedia says
Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm Onchocerca volvulus. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindness due to infection, after trachoma.
Excerpt from the Wikipedia article “Onchocerciasis”, under the CC BY-SA 4.0 license. Read the article on Wikipedia
Image: United States Department of Agriculture, Public domain, via Wikimedia Commons.
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