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Onchocerca sweetae (Nematoda: Filarioidea): notes on the intermediate host

Published online by Cambridge University Press:  05 June 2009

D. M. Spratt ,
A. L. Dyce  and
H. A. Standfast
D. M. Spratt
Affiliation:
Division of Wildlife Research, CSIRO, P.O. Box 84, Lyneham, A.C.T. 2602, Australia
A. L. Dyce
Affiliation:
Division of Animal Health, CSIRO, Private Bag No. 1, Glebe 2037, Australia
H. A. Standfast
Affiliation:
Division of Animal Health, CSIRO, Private Bag No. 3, Indooroopilly 4068, Australia
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Abstract

Microfilariae of Onchocerca sweetae are broadly distributed in the superficial layers of the dermis of the water buffalo (Bubalus bubalis). A total of 2855 insects representing 20 species were collected from O. sweetae-infected bait buffaloes. Only one species, Culicoides sp. “M”, ingested microfilariae from buffalo skin. Larval development of O. sweetae was observed in the thorax of this species. A total of 829 insects, representing 7 species and including 749 parous Culicoides spp. were collected from light and Manitoba traps. Developing filarioid larvae were observed only in Culicoides sp. “M”. It is concluded that Culicoides sp. “M” is a natural intermediate host of O. sweetae in the Northern Territory of Australia.

Type
Research Papers
Information
Journal of Helminthology , Volume 52 , Issue 1 , March 1978 , pp. 75 - 81
Copyright
Copyright © Cambridge University Press 1978

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