[Schistosoma intercalatum: morphologic and biometrical changes of the eggs in relation to the localization in the definitive host and with the geographical origin of the parasite (Cameroon and Zaire)].
A study of the egg morphology and biometry of Schistosoma intercalatum is carried out. A comparative study shows that the egg size varies according to the localization: the smallest are in utero, the largest in the liver, those from the faeces being intermediate. The increase in size could depend on the miracidial development. Some morphological features vary in relation with size especially the width. Regarding the geographical origin, two morphological differences are reported: the first is the presence of a "shoulder" at the spined end of the egg of the Cameroon strain and its absence in the Zaïre strain; the second is the dissymmetry of the eggs from Zaïre and the relative symmetry of the eggs from the Cameroons. The eggs from the Cameroons which tend to be larger but narrower than those from Zaïre, are significantly different.
URA CNRS 698, Université de Perpignan.
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D000818:Animals; D002163:Cameroon; D015023:Democratic Republic of the Congo; D005243:Feces / Q000469:parasitology; D005260:Female; D006790:Host-Parasite Interactions; D008099:Liver / Q000469:parasitology; D051379:Mice; D012547:Schistosoma / Q000033:anatomy & histology* / Q000145:classification; D014599:Uterus / Q000469:parasitology
Schistosoma intercalatum: variations morphologiques et biométriques des oeufs en relation avec la localisation chez l'hôte définitif et l'origine géographique du parasite (Cameroun et Zaïre).