Onchocerca

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Onchocerca

 [ong″ko-ser´kah]
a genus of parasitic filaria. O. vol′vulus is a common parasite of humans, breeding in fast-flowing rivers and streams in tropical parts of the Americas and equatorial Africa, particularly West Africa. It is the etiologic agent of human onchocerciasis and is transmitted by the bites of blackflies (buffalo gnats) of the genus Simulium, in which the parasite passes part of its life cycle.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Onchocerca

(ong'kō-ser'kă),
A genus of elongated filariform nematodes (family Onchocercidae) that inhabit the connective tissue of their hosts, usually within firm nodules in which these parasites are coiled and entangled.
Synonym(s): Oncocerca
[G. onkos, a barb, + kerkos, tail]
Farlex Partner Medical Dictionary © Farlex 2012

On·cho·cer·ca

(ong'kō-ser'kă)
A genus of elongated filariform nematodes that inhabit host's connective tissue, usually within firm nodules in which these parasites are coiled and entangled.
Synonym(s): Oncocerca.
[G. onkos, a barb, + kerkos, tail]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
About 75 percent of horses surveyed in the Midwest were infected with Onchocerca cervicalis. Adult females are quite long--up to 30 centimeters--but the males are small, 6 to 7 millimeters long.
(N) Onchocerca cervicalis (N) Oxyuris equi (N) Parascaris equorum (N) Setaria equina (N) Strongylus edentatus (N) Strongylus equinus (N) Strongylus vulgaris (N) Triodontophorus tenuicollis (N) Felis catus Amphimerus costarricensis * (D) Ancylostoma caninum (N) Dipylidium caninum (N) Paragonimus mexicanus (D) Taenia taeniaeformis (C) Toxocara mystax (N) Felis concolor Echinococcus oligarthrus (C) Felis pardalis Lagochilascaris sp.
Mal de Cruz en equinos causado por Onchocerca cervicalis. Cienc.