Letter: Living microfilariae of Onchocerca volvulus in the cornea.
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چکیده
منابع مشابه
Scanning Electron Microscopy of Onchocerca volvulus Microfilariae from Guatemala
Microfilariae of Onchocerca volvulus from Guatemala were examined by scanning electron microscope. There are numerous transverse striations on the cuticular surface. The number of annulations varies from 325 to 357. The anterior end forms a round cephalic cap which bears a V-shaped hook. Two small openings are present on the cephalic cap. They are probably the openings of one of the amphidial c...
متن کاملA simple technique for photographing living microfilariae of Onchocerca volvulus in the anterior chamber of the eye.
SIR, Living microfilariae in the anterior chamber of the eye are a common sign of ocular onchocerciasis, but so far there has been no known technique for photographing them. A microfilaria in the corneal stroma was photographed with a retroillumination technique by Brown (1971), but the living microfilariae in the anterior chamber present a problem because of their mobility. Sarkies (1951) obse...
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There is no published account which allows the morphological discrimination of microfilariae of Onchocerca volvulus and M. ozzardi from each other. However, they occur together in parts of Brazil and Venezuela, and presumably there is always the possibility that migration could establish new sympatric populations in the future. The objective of this study was to evaluate simple morphological ch...
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BACKGROUND & OBJECTIVES Mass administration of ivermectin drug was carried out annually between 1995 and 2001 in three villages that were endemic for onchocerciasis in the Lower Cross River Basin, Nigeria. The aim of this study was to evaluate the population dynamics (dispersion patterns, distribution, prevalence and intensity) of Onchocerca volvulus microfilariae in their human host after six ...
متن کاملExperimental ocular onchocerciasis in cynomolgus monkeys. IV. Chorioretinitis elicited by Onchocerca volvulus microfilariae.
Onchocerciasis is a major cause of blindness worldwide, and much of the blindness is caused by onchocercal chorioretinitis. In an experimental animal model for ocular onchocerciasis, intravitreal injections of 10,000 live Onchocerca volvulus microfilariae isolated from infected humans into the eyes of cynomolgus monkeys (Macaca fascicularis) resulted in patchy, progressive loss of retinal pigme...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1973
ISSN: 0007-1161
DOI: 10.1136/bjo.57.9.712