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Comparison of two egyptian strains ofSchistosoma mansoni in hamsters

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In human infection withSchistosoma mansoni from Beni-Suef, the eggs were encountered more frequently in the urine of patients than in infection withS. mansoni from Giza, where eggs were passed into the stool. A comparative study of the two strains ofS. mansoni from Beni-Suef and Giza has been carried out in golden hamster. Consistent strain differences were observed. The Beni-Suef strain proved to have lower worm recovery and different egg distribution patterns in tissues of infected hamsters. Worms of both sexes of this strain were larger in size and required a longer period to reach maturity. Hence, the prepatent period was prolonged. Significant differences between the two strains were also noted in the number of eggs per worm. A lower mortality rate and a longer survival time were encountered in hamsters infected with the Beni-Suef strain.

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Author information

Correspondence to Gamil N. Soliman.

Additional information

This work was supported by the Naval Medical Research and Development Command, NMC, NCR, Bethesda, MD. Work Unit No. 3M161102BS10.AA421

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Soliman, G.N., El Assal, F.M., Mansour, N.S. et al. Comparison of two egyptian strains ofSchistosoma mansoni in hamsters. Z. Parasitenkd. 72, 353–363 (1986). https://doi.org/10.1007/BF00928746

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  • Survival Time
  • Lower Mortality
  • Human Infection
  • Longe Survival
  • Strain Difference