Issue |
Ann. Parasitol. Hum. Comp.
Volume 44, Number 5, 1969
|
|
---|---|---|
Page(s) | 531 - 537 | |
DOI | https://doi.org/10.1051/parasite/1969445531 | |
Published online | 12 October 2017 |
Mémoire
Quantitative investigation of Nippostrongylus brasiliensis acting as vector of Trypanosoma congolense or Trypanosoma brucei in rat
Department of Zoology, University of Ife, Nigeria.
The ability of the rat Nematode Nippostrongylus brasiliensis to transmit T. congolense or T. brucei experimentally was investigated.
One group of rats was infected simultaneously with T. congolense and N. brasiliensis and another group with T. brucei and N. brasiliensis. A third group of rats was infected with T. congolense and then later with N. brasiliensis, while a fourth group was infected with T. brucei and then with N. brasiliensis. Infective third stage larvae cultured from the feces of each doubly infected groups were injected into healthy rats. Blood from the recipient hosts was checked repeatedly to see if the Trypanosomes had been transmitted by N. brasiliensis. The results were negative.
Résumé
Devant la faculté, pour certains Helminthes parasites, de transmettre divers agents pathogènes à de nouveaux hôtes, l’auteur a recherché si le Nématode du rat, Nippostrongylus brasiliensis ne pourrait transmettre expérimentalement à d’autres rats Trypanosoma congolense ou Trypanosoma brucei.
Un premier lot de rats a été simultanément infesté par T. congolense et N. brasiliensis ; un deuxième lot par T. brucei et N. brasiliensis ; un troisième lot a été infesté par T. congolense et ultérieurement par N. brasiliensis ; enfin un quatrième lot était infesté d’abord par T. brucei et ensuite par N. brasiliensis.
Les larves infestantes du troisième stade, obtenues en culture à partir des fécès de chacun des lots doublement infestés, ont été inoculées à des rats sains. L’examen répété du sang n’a jamais révélé la présence de Trypanosomes transmis par ces larves.
© Masson, Paris 1969, transferred to Société Française de Parasitologie
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