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The transmission of Onchocerca tarsicola (Filarioidea: Onchocercidae) by Odagmia ornata and Prosimulium nigripes (Diptera: Simuliidae)

Published online by Cambridge University Press:  18 November 2009

H. Schulz-Key  and
P. Wenk
H. Schulz-Key
Affiliation:
Tropenmedizinisches Institut der Universität Tübingen, German Federal Republic
P. Wenk
Affiliation:
Tropenmedizinisches Institut der Universität Tübingen, German Federal Republic
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Abstract

Onchocerca tarsicola is a subcutaneous filariid of the red deer living on the tendons of the radial-carpal and tibial-tarsal joints. Its micronfilariae concentrate mainly in the external ears. The extrinsic cycle of this parasite was investigated. In a hyperendemic area wild-caught Odagmia ornata were dissected, as well as samples which had fed on a tame deer and been kept in the laboratory after the infecting blood-meal. About 3 to 5% of the flies were infected with larval stages of Onchocerca tarsicola. More than 40% of Odagmia ornata induced to feed on the ears of the deer became infected and about 30% of the flies which survived more than 18 days contained third-stage larvae. The larval development in the vector is described. Prosimulium nigripes appears to be a second natural vector of Onchocerca tarsicola. Observations concerning the potential vectors of O. Jlexuosa, O. tubingensis and Cutifilaria wenki living in red deer are discussed.

Type
Research Article
Information
Journal of Helminthology , Volume 55 , Issue 3 , September 1981 , pp. 161 - 166
Copyright
Copyright © Cambridge University Press 1981

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