logging in or signing up River Blindness 2 aSGuest98442 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 17 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: May 16, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript River Blindness (Onchocerciasis): River Blindness ( Onchocerciasis ) By: George ReijerBreak down : Break down What is river blindness Parasitic nematode Black fly Life cycle How River Blindness Spread Statistics Control/ TreatmentWhat is River Blindness : What is River Blindness River blindness is an eye and skin disease caused by a parasitic worm called Onchocerca volvus. It is transmitted to humans through the bite of a blackfly.What is River Blindness: What is River Blindness Worms stay under the skin of the host. Connective tissue is destroyed. Eosinophils defend against this worm.Parasitic Nematode: Parasitic Nematode Onchocerca volvulus is the genius and species of the nematodes Female-20 inches long Males-5 inches long Produce millions of babies (microfilaria)Parasitic Nematode: Parasitic Nematode Wolbachia endosymbionts Lives up to 14 years Travels up to the eye Symptoms manifest between 1-4 yearsBlackfly: Blackfly Simulium yahense 12 days to mature Microfilaria enter the thoracic Migrate to proboscis & saliva Hungry for bloodLife Cycle of River Blindness: Life Cycle of River BlindnessHow River Blindness Spread: How River Blindness Spread Black flies found near fast- running streams 90-99% of the disease occurs in Africa Exported by slave tradeStatistics : Statistics 18 million people are infected 6.5 million suffer from severe itching or dermatitis. 270,000 are blindControl and Treatment methods: Control and Treatment methods Vector Control Medical care: Ivermectin Surgical careSources: Sources http://actionagainstpoisoning.com/CARE%20AND%20TREATMENT/RIVERBLINDNESSONCHOCERCIASIS/Onchocerciasis.html http://www.histopathology-india.net/Oncho.htm http://www.uniteforsight.org/course/riverblindness.php http://www.who.int/apoc/onchocerciasis/control/en/index.html http://www.asnom.org/en/442_onchocercose.html You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.