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onchocerca volvulus n.
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Matt Greatens

Matt Greatens

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Matt Greatens

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  1. Onchocercavolvulus Matt Greatens

  2. Taxonomy • Kingdom: Animalia • Phylum: Netatoda • Class: Cecernentea • Order: Spirurida • Family: Onchocercidae • Genus: Onchocerca • Species: volvulus

  3. Geographic Location • Mainly Africa • Latin America • Middle East

  4. Hosts • Definitive Host: • Humans • Intermediate Hosts: • Black fly

  5. Life Cycle

  6. Infection • Causes onchocerciasis (or river blindness) • Caused from the bacterium Wolbachia which has an endosymbiotic relationship • Second leading cause of blindness • 18 million suffer from the disease • Can cause blindness

  7. Person with River Blindness

  8. Diagnosis • Most effective way to diagnose this infection is by taking a skin sample and checking for larvae.

  9. Treatment • Ivermectin • Can be used to prevent the infection • Corticosteroids may help with allergic reactions • Doxycycline also can help kill microfilaria but it is currently being tested.

  10. Prevention and Control • Stopping black flies from biting humans by using protective netting • Treat local lakes and rivers with insectices