Hostname: page-component-84b7d79bbc-tsvsl Total loading time: 0 Render date: 2024-07-30T22:11:12.082Z Has data issue: false hasContentIssue false

Schistosoma intercalatum (Fisher, 1934) infection in sheep

Published online by Cambridge University Press:  18 November 2009

Niels Ørnbjerg Christensen
Affiliation:
Danish Bilharziasis Laboratory, Jaegersborg Alle 1 D, DK-2920 Charlottenlund, Denmark
Peter Nansen
Affiliation:
Institute of Veterinary Microbiology and Hygiene, Royal Veterinary and Agricultural University, Bülowsvej 13, DK-1870 Copenhagen V, Denmark
Flemming Frandsen
Affiliation:
Danish Bilharziasis Laboratory, Jaegersborg Alle 1 D, DK-2920 Charlottenlund, Denmark
Jesper Monrad
Affiliation:
Faculty of Agriculture, Forestry and Veterinary Science, P.O. Box 643, Morogoro, Tanzania

Abstract

Parasitological and clinico-pathological aspects of Schistosoma intercalatum infection in sheep were studied after exposure to 5000 cercariae per animal. It was shown that the infection, in spite of relatively high tissue egg counts, only gave rise to low-grade clinico-pathological manifestations with almost unaffected blood parameters. The parasites were mainly located in the lower part of the intestinal tract, and the number of eggs being passed in faeces was very low.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1982

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

Bailey, N. T. (1974) Statistical Methods in Biology. Lion Library, London.Google Scholar
Bell, D. R. (1963) A new method for counting Schistosoma monsoni eggs in faeces with special reference to therapeutic trials. Bulletin of the World Health Organization, 29, 525530.Google Scholar
Dargie, J. D., & Preston, J. M. (1974) Patho-physiology of ovine schistosomiasis, VI. Onset and development of anaemia in sheep experimentally infected with Schistosoma mattheei—ferrokinetic studies. Journal of Comparative Pathology, 84, 8391.CrossRefGoogle ScholarPubMed
Dargie, J. D., Maclean, J. M. & Preston, J. M. (1973) Patho-physiology of ovine schistosomiasis, III. Study of plasma protein metabolism in experimental Schistosoma mattheei infections. Journal of Comparative Pathology, 83, 543557.CrossRefGoogle Scholar
Frandsen, F., Monrad, J., Christensen, N. Ø. & Nansen, P. (1978) Sheep as a potential reservoir host for Schistosoma intercalatum. Journal of Parasitology, 64, 1136.CrossRefGoogle ScholarPubMed
Kuntz, R. E., McCullough, B., Huang, T. C. & Moore, J. A. (1978a) Schistosoma intercalatum Fisher, 1934 (Cameroon) infection in the patas monkey (Erythrocebus patas Schreber 1775). International Journal for Parasitology, 8, 6568.CrossRefGoogle ScholarPubMed
Kuntz, R. E., McCullough, B., Moore, J. A. & Huang, T. C. (1978b) Experimental infection with Schistosoma intercalatum (Fisher, 1934) in the chimpanzee (Pan troglodytes) and the gibbon (Hylobates lar). American Journal of Tropical Medicine and Hygiene, 27, 632634.CrossRefGoogle ScholarPubMed
Kuntz, R. E., Huang, T. C. & Moore, J. A. (1980) The capuchin monkey (Cebus apella) as an experimental host for Schistosoma intercalatum. Proceedings of the Helminthological Society Washington, 47, 260262.Google Scholar
Lawrence, J. A. (1980) The pathogenesis of Schistosoma mattheei in the sheep. Research in Veterinary Science, 29, 17.CrossRefGoogle ScholarPubMed
Monrad, J., Christensen, N. Ø., Nansen, P. & Frandsen, F. (1981). Resistance to Fasciola hepatica in sheep harbouring primary Schistosoma bovis infections. Journal of Helminthology 55, 261271.CrossRefGoogle ScholarPubMed
Preston, J. M. & Dargie, J. D. (1974) Patho-physiology of ovine schistosomiasis, V. Onset and development of anaemia in sheep experimentally infected with Schistosoma mattheei—studies with Cr.-labelled erythrocytes. Journal of Comparative Pathology, 84, 7381.CrossRefGoogle Scholar
Preston, J. M., Dargie, J. D. & Maclean, J. M. (1973) Patho-physiology of ovine schistosomiasis, I. A clinico-pathological study of experimental Schistosoma mattheei infections. Journal of Comparative Pathology, 83, 401415.CrossRefGoogle Scholar
Schwetz, J. (1956) Some new comparative investigations on three Physopsis borne schistosomes: Schistosoma haematobium, S. bovis and S. intercalatum. American Journal of Tropical Medicine and Hygiene, 5, 10711085.CrossRefGoogle ScholarPubMed
Taylor, M. G., James, E. R., Nelson, G. S., Bickle, Q., Dunne, D. W., Dobinson, A. R., Dargie, J. D., Berry, C. I. & Hussein, M. F. (1977) Modification of the pathogenicity of Schistosoma mattheei for sheep by passage of the parasite in hamsters. Journal of Helminthology, 51, 337345.CrossRefGoogle ScholarPubMed
Van Wyk, J. A., Heitman, L. P. & Van Rensburg, L. J. (1975) Studies on schistosomiasis: 7. A comparison of various methods for the infestation of sheep with Schistosoma mattheei. Ondersiepoort Journal of Veterinary Research, 42, 7174.Google ScholarPubMed
Webbe, G. & James, C. (1971) The importation and maintenance of schistosomes of human and veterinary importance. In: Symposia of the British Society for Parasitology, 9, (eds. Taylor, A. E. R. and Muller, R.). Blackwell: Oxford, pp. 77107.Google Scholar
Wright, C.A., Southgate, V.R. & Knowles, R.J. (1972) What is Schistosoma intercalatum Fisher, 1934? Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, 2864.CrossRefGoogle ScholarPubMed