Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-26T00:40:40.446Z Has data issue: false hasContentIssue false
  • English
  • Français

Observations on the field transmission dynamics of Schistosoma mansoni and S. mattheei in southern Natal, South Africa

Published online by Cambridge University Press:  06 April 2009

Fiona A. Donnelly  and
C. C. Appleton
Fiona A. Donnelly
Affiliation:
Research Institute for Diseases in a Tropical Environment, South African Medical Research Council, P.O. Box 17120, Congella 4013, Republic of South Africa
C. C. Appleton
Affiliation:
Research Institute for Diseases in a Tropical Environment, South African Medical Research Council, P.O. Box 17120, Congella 4013, Republic of South Africa
Get access Rights & Permissions [Opens in a new window]

Extract

Cercarial transmission of Schistosoma mansoni and S. mattheei was monitored in two small rivers near Durban, South Africa. The seasonal patterns recorded corresponded to those already documented for these parasites. Tn the case of S. mansoni, however, this was interrupted at the height of the transmission season. The reason for this was believed to be very low oxygen concentrations in the snail habitat due to unusually extensive growth of the plant Ludwigia stolonifera over the water. The failure of the spring rains, which would normally have flushed the system is seen as contributing to this phenomenon. Infection rates in the snail intermediate hosts were low ( > 10%). A preponderance of male worms of both schistosome species was noted.

Type
Research Article
Information
Parasitology , Volume 91 , Issue 2 , October 1985 , pp. 281 - 290
Copyright
Copyright © Cambridge University Press 1985

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

Anderson, R. M. & May, R. M. (1979). Prevalence of schistosome infections within molluscan populations: observed patterns and theoretical predictions. Parasitology 79, 63–94.CrossRefGoogle ScholarPubMed
Appleton, C. C. (1983). Studies on Austrobilharzia terrigalensis (Trematoda: Schistososomatidae) in the Swan Estuary, Western Australia: frequency of infection in the intermediate host population. International Journal for Parasitology 13, 51–60.CrossRefGoogle ScholarPubMed
Appleton, C. C. & Eriksson, I. M. (1984). The influence of fluctuating above-optimal temperature regimes on the fecundity of Biomphalaria pfeifferi (Mollusca: Planorbidae). Transactions of the Royal Society of Tropical Medicine and Hygiene 78, 49–54.CrossRefGoogle ScholarPubMed
Begg, G. W. (1978). The estuaries of Natal. Natal Town and Regional Planning Report 41, 1–657.Google Scholar
Brown, D. S. (1967). A review of the freshwater Mollusca of Natal and their distribution. Annals of The Natal Museum 18, 477–94.Google Scholar
Crewe, W. & Cowper, S. G. (1973). A leech parasitic on Bulinus. Transactions of the Royal Society of Tropical Medicine and Hygiene 67, 25.CrossRefGoogle ScholarPubMed
Donnelly, F. A., Appleton, C. C., Begg, G. W. & Schutte, C. H. J. (1984). Bilharzia transmission in Natal's estuaries and lagoons: fact or fiction? South African Journal of Science 80, 455–60.Google Scholar
Fripp, P. J. & Mcsheehy, M. A. (1969). The separation of Schistosoma mansoni α-naphthyl acetate esterases by thin layer gel electrophoresis. South African Journal of Medical Science 34, 35–7.Google ScholarPubMed
Garcia, R. G. (1972). Tolerance of Oncomelania hupensis quadrasi to varying concentrations of dissolved oxygen and organic pollution. Bulletin of the World Health Organization 47, 59–70.Google ScholarPubMed
Gear, J. H. S., Pitchford, R. J. & van Eeden, J. A. (1980). Atlas of Bilharzia in Southern Africa. Joint publication by the South African Institute for Medical Research, South African Medical Research Council, and Department of Health.Google Scholar
Jackson, T. F. H. G., Dettman, C. D. & Higgins-Opitz, S. B. (1982). Experience with a perfo-suction system for the recovery of schistosomes from laboratory rodents. Laboratory Animals 16, 65–7.CrossRefGoogle ScholarPubMed
Jones, J. D. (1964). Respiratory gas exchange in the aquatic pulmonate Biomphalaria sudanica. Comparative Biochemistry and Physiology 12, 297–310.CrossRefGoogle Scholar
Pitchford, R. J. & Visser, P. S. (1962 a). The role of naturally infected wild rodents in the epidemiology of schistosomiasis in the eastern Transvaal. Transactions of the Royal Society of Tropical Medicine and Hygiene 56, 126–35.CrossRefGoogle ScholarPubMed
Pitchfokd, R. J. & visser, P. S. (1962 b). Results of exposing mice to schistosomiasis by immersion in natural water. Transactions of the Royal Society of Tropical Medicine and Hygiene 56, 294–301.CrossRefGoogle Scholar
Pitchford, R. J. & visser, P. S. (1965). Some further observations on schistosome transmission in the eastern Transvaal. Bulletin of the World Health Organization 32, 83–104.Google ScholarPubMed
Polderman, A. M. (1974). Schistosomiasis in Begemder Province, Ethiopia. Final Report on 2nd Research Project, Rijks Universiteit, Leiden.Google Scholar
Polderman, A. M. (1979). Transmission dynamics of endemic schistosomiasis. Tropical and Geographical Medicine 31, 465–75.Google ScholarPubMed
Shiff, C. J., Evans, A., Yiannakis, C. & Eabdley, M. (1975). Seasonal influence on the production Of Schistosoma haematobium and S. Mansoni cercariae in Rhodesia. International Journal for Parasitology 5, 119–23.CrossRefGoogle ScholarPubMed
Smith, V. G. F. (1982). Distribution of snails of medical and veterinary importance in an organically polluted watercourse in Nigeria. Annals of Tropical Medicine and Parasitology 76, 539–46.CrossRefGoogle Scholar
Smithers, S. R. & Terry, R. J. (1965). The infection of laboratory hosts with cercariae of Schistosoma Mansoni and the recovery of the adult worms. Parasitology 55, 695–700.CrossRefGoogle ScholarPubMed
Sturrock, R. F. (1973). Field studies on the transmission of Schistosoma mansoni and on the bionomics Of its intermediate host, Biomphalaria glabrata, on St Lucia, West Indies. International Journal for Parasitology 3, 175–94.CrossRefGoogle Scholar
Sturrock, R. F., Karamsadkar, S. J. & Ouma, J. (1979). Schistosome infection rates in field snails: Schistosoma mansoni in Biomphalaria pfeifferi in Kenya. Annals of Tropical Medicine and Parasitology 73, 369–75.CrossRefGoogle ScholarPubMed
Ultsch, S. (1973). The effect of water hyacinths (Eichhornia crassipes) on the microenvironment of aquatic communities. Archiv für Hydrobiologie 72, 460–73.Google Scholar
Upatham, E. S., Koura, M., Ahmed, M. D. & Awad, A. H. (1981). Studies on the transmission of Schistosoma haematobium and the bionomics of Bulinus (Ph). Abbysinicus in the Somali Democratic Republic. Annals of Tropical Medicine and Parasitology 75, 63–9.CrossRefGoogle ScholarPubMed
van Aardt, W. J. & Frey, B. J. (1979). Oxygen consumption and responses of the freshwater snail Bulinus (Physopsis) globosus to gradients of different oxygen tensions. South African Journal of Zoology 14, 202–7.CrossRefGoogle Scholar
Wright, C. A. & Bennett, M. S. (1967 a). 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, 221–7.CrossRefGoogle Scholar
Wright, C. A. & Bennett, M. S. (1976). Studies on Schistosoma haematobium in the laboratory. II. A strain from South Arabia. Transactions of the Royal Society of Tropical Medicine and Hygiene 61, 228–33.CrossRefGoogle Scholar