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Title: Scanning electron microscopic study of microfilaria and the third stage larva of Wuchereria bancrofti
Authors: Supaporn Ratanatham
Ounruan Sirivanichkul
E. Suchart Upatham
Prasert Sobhon
Vithoon Viyanant
Chitapa Ketavan
Mahidol University
King Mongkuts University of Technology
Kasetsart University
Keywords: Medicine
Issue Date: 1-Dec-1997
Citation: Southeast Asian Journal of Tropical Medicine and Public Health. Vol.28, No.4 (1997), 820-825
Abstract: The surface structures of microfilaria and of the third stage larva of Wuchereria bancrofti were studied by scanning electron microscopy. Distinct features were observed that could be used for differentiating species of this parasite. Specifically, the sheath of microfilariae of W. bancrofti projected beyond the head. The head region of the microfilaria was composed of a cephalic cap with hook, mouth and amphidial opening, and its cuticle showed annulation. Spines were absent at the first transverse annulation, and the tail end showed a slight constriction. In the infective stage larva, characters which are used for differentiating species, such as the two bubble-like ventro-lateral papillae and one dorso-terminal papilla were rather similar to each other in size, but the grooves seen around the base were absent. A previously unreported feature of the third stage larva of W. bancrofti that was discovered in this tudy is a papilliform process on the left side of the posterior region, between the anus and the tail end.
ISSN: 01251562
Appears in Collections:Scopus 1991-2000

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