Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-06T03:58:56.434Z Has data issue: false hasContentIssue false
  • English
  • Français

Single sex cercariae of Schistosoma mansoni, a comparison of male and female infectivity

Published online by Cambridge University Press:  05 June 2009

Susan Rowntree  and
C. James
Susan Rowntree
Affiliation:
Department of Medical Helminthology, London School of Hygiene and Tropical Medicine, London WC1E 7HT
C. James
Affiliation:
Department of Medical Helminthology, London School of Hygiene and Tropical Medicine, London WC1E 7HT
Get access Rights & Permissions [Opens in a new window]

Extract

Over 90% of Schistosoma haematobium and S. mansoni infections show a dominance of male worms in experimental animals. Male: female ratios as high as 5: 1 are common in S. haematobium (Ghana) infections and 1·5: 1 is a typical ratio in S. mansoni infections. The male parasite seems to be more successful than the female in reaching maturity. To test this theory experiments were set up to compare the infectivity of male and female cercariae.

Type
Research Note
Information
Journal of Helminthology , Volume 51 , Issue 1 , March 1977 , pp. 69 - 70
Copyright
Copyright © Cambridge University Press 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Clegg, J. A. and Smithers, S. R. (1972) The effects of immune rhesus monkey serum on schistosomula of Schistosoma mansoni during cultivation in vitro. International Journal for Parasitology, 2, 79–98.CrossRefGoogle ScholarPubMed
James, C. and Webbe, G. (1973) A comparison of Egyptian and East African strains of Schistosoma haematobium. Journal of Helminthology, 47, 49–59.CrossRefGoogle Scholar
James, C. and Webbe, G. (1975) A comparison of Sudanese and South African strains of Schistosoma haematobium. Journal of Helminthology, 49, 191–197.CrossRefGoogle ScholarPubMed
Perez, Hilda, Clegg, J. A. and Smithers, S. R. (1974) Acquired immunity to Schistosoma mansoni in the rat: measurement of immunity by the lung recovery technique. Parasitology, 69, 349–359.CrossRefGoogle ScholarPubMed
Taylor, M. G. and Andrews, B. J. (1973) Comparison of the infectivity and pathogenicity of six species of African schistosomes and their hybrids. I. Mice and hamsters. Journal of Helminthology, 47, 439–453.CrossRefGoogle Scholar
Webbe, G. and James, C. (1971) A comparison of two geographical strains of Schistosoma haematobium. Journal of Helminthology, 45, 271–284.CrossRefGoogle ScholarPubMed
Wright, C. A. and Bennet, M. S. (1967a) Studies on Schistosoma haematobium in the laboratory. I. A strain from Durban, Natal, South Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene, 61, 221–227.CrossRefGoogle Scholar
Wright, C. A. and Bennett, M. S. (1967b) Studies on Schistosoma haematobium in the laboratory. II. A strain from South Arabia. Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, 228–233.CrossRefGoogle Scholar
Wright, C. A. and Knowles, R. J. (1972) Studies on Schistosoma hamatobium in the laboratory. III. Strains from Iran, Mauritius and Ghana. Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, (1), 108–118.CrossRefGoogle Scholar
Wright, C. A., Southgate, V. R. and Knowles, R. J. (1972) What is Schistosoma intercalatum? Fisher 1934 Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, 28–64.CrossRefGoogle ScholarPubMed