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10 Cards in this Set
- Front
- Back
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What is the causative agent of lymphatic filariasis?
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W. bancrofti.
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How is the parasite which causes lymphatic filariasis transmitted?
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The hulex mosquito, which bites only at night.
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What is elephantiasis?
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The extreme manifestation of lymphatic filariasis in which massive swelling of the lower limbs and genitalia occurs as a result of parasitic blockage of lymph flow.
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How does chronic lymphatic filariasis result in permanent swelling of the lower extremities and genitalia?
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Chronic parasitic infection of lymph nodes results in fibrotic changes to these areas.
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Other than clinical presentation, how is lymphatic filariasis diagnosed?
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The presence of microfilariae in blood samples taken at night.
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What drug has been pivotal in bringing the incidence of onchonceriasis under control?
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Ivermectin
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What is the vector for Onchocerca? What is its habitat?
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*black fly
*it lives near moving water |
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Where are adult worms found in onchocerciasis?
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They live in nodules under the skin or eye.
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What is the cause of the intense itching seen in onchocerciasis? What is a sequela of this itching?
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*Adult worms release microfilariae which migrate under the skin
*secondary infection due to scratching |
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How is onchocerciasis diagnosed?
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Skin snips are examined for the presence of motile microfilariae.
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