Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-26T04:41:29.287Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies of the relationships between Schistosoma and their intermediate hosts. 1. The genus Bulinus and Schistosoma haematobium from Egypt

Published online by Cambridge University Press:  05 June 2009

Flemming Frandsen
Flemming Frandsen
Affiliation:
Danish Bilharziasis Laboratory, Jaegersborg Alle 1 D, DK 2920 Charlottenlund, Denmark
Get access Rights & Permissions [Opens in a new window]

Abstract

The susceptibility of Bulinus truncatus, B. tropicus, B. natalensis, B. coulboisi, B. globosus, B. cernicus and B. wrighti to Schistosoma haematobium from Egypt were examined. Eighteen different populations of B. truncatus were investigated.

A new method of measuring the compatibility between schistosomes and the intermediate snail hosts, the total cercarial production per 100 exposed snail, is introduced.

All B. truncatus populations became infected and could be divided in four groups according to the total cercarial production per 100 exposed snails. In the first group the cercarial production varied from 250 000 to 500 000 and in the last group between 5000 and 20 000. The first group had a high infection rate of 62 to 100% and a low mortality of approximately 10% and the last group showed a very low infection rate and a high mortality.

B. globosus (Rhodesia), B. cernicus and B. wrighti became infected, while B. globosus (Zaire), B. coulboisi, B. natalensis and B. tropicus were refractory.

The shortest prepatent period was 26 days at a room temperature of 26°C. The maximum cercariae production for one snail in one day was 600 and the longest duration of infection was 200 days.

Experimenting with different doses of miracidia, 5 to 50 per snail, resulted in a one hundred per cent infection and a low mortality of 10%. There was only a slight variation in the cercarial production.

Type
Research Papers
Information
Journal of Helminthology , Volume 53 , Issue 1 , March 1979 , pp. 15 - 29
Copyright
Copyright © Cambridge University Press 1979

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

Brown, D. S. and Burch, J. B. (1967) Distribution of cytologically different populations of the genus Bulinus (Basommatophora: Planorbidae) in Ethiopia. Malacologia, 6, 175–188.Google Scholar
Brown, D. S. and Wright, C. A. (1974) Bulinus truncatus as a potential intermediate host for Schistosoma haematobium on the Kano Plain, Kenya. Transactions of the Royal Society of Tropical Medicine and Hygiene, 68, 341–342.CrossRefGoogle ScholarPubMed
Capron, A., Deblock, S., Biquet, J., Clay, A., Adense, L. and Vernes, A. (1965) Contribution à l’étude expérimentale de la Bilharziose à Schistosoma haematobium. Bulletin of the World Health Organization, 32, 755–778.Google Scholar
Chu, K. Y., Massoud, J. and Sabbaghian, H. (1966a) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 1. Effect of the age of B. truncatus on the development of S. haematobium. Bulletin of the World Health Organization, 34, 113–119.Google ScholarPubMed
Chu, K. Y., Sabbaghian, H. and Massoud, J. (1966b) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 2. Effect of exposure dosage of miracidia on the biology of the snail host and the development of the parasites. Bulletin of the World Health Organization, 34, 121–130.Google ScholarPubMed
Chu, K. Y., Massoud, J. and Sabbaghian, H. (1966c) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 3. Effect of water temperature on the ability of miracidia to infect snails. Bulletin of the World Health Organization, 34, 131–133.Google ScholarPubMed
Chu, K. Y., Massoud, J. and Sabbaghian, H. (1966d) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 4. Effect of month of infection on cercarial-incubation periods of S. haematobium and S. bovis. Bulletin of the World Health Organization, 34, 135–140.Google ScholarPubMed
Cridland, C. C. (1955) The experimental infection of several species of African freshwater snails with Schistosoma mansoni and S. haematobium. Journal of Tropical Medicine and Hygiene, 58, 1–11.Google ScholarPubMed
Cridland, C. C. (1957) Further experimental infection of several species of East African freshwater snails with Schistosoma mansoni and S. haematobium. Journal of Tropical Medicine and Hygiene, 60, 18–23.Google ScholarPubMed
Frandsen, F. (1975) Host-parasite relationship of Bulinus forskalii (Ehrenberg) and Schistosoma intercalatum Fisher 1934, from Cameroun. Journal of Helminthology, 49, 73–84.CrossRefGoogle ScholarPubMed
Frandsen, F. (1976) The suppression, by Helisoma duryi, of the cercarial production of Schistosoma mansoni-infected Biomphalaria pfeifferi. Bulletin of the World Health Organization, 53, 385–390.Google ScholarPubMed
Frandsen, F. (1978) Hybridization between different strains of Schistosoma intercalatum Fisher, 1934, from Cameroun and Zaire. Journal of Helminthology, 52, 11–22.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
Kuntz, R. E. (1955) Biology of the schistosome complexes. American Journal of Tropical Medicine and Hygiene, 4, 383–414.CrossRefGoogle ScholarPubMed
Leroux, P. L. (1954) The infection of laboratory-bred specimens of Bulinus forskalii from Gambia with an Egyptian strain of Schistosoma haematobium. Transactions of the Royal Society of Tropical Medicine and Hygiene, 48, 5.Google Scholar
Leroux, P. L. (1958) The validity of Schistosoma capense (Harley, 1864) amended as a species. Transactions of the Royal Society of Tropical Medicine and Hygiene, 52, 12–14.Google Scholar
Lo, C. T. (1972) Compatibility and host-parasite relationships between species of the genus Bulinus (Basommathophora: Planorbidae) and an Egyptian strain of Schistosoma haematobium (Trematoda: Digenea). Malacologia, 11, 225–280.Google Scholar
Lo, C. T., Burch, J. B. and Schutte, C. H. J. (1970) Infection of diploid Bulinus s.s. with Schistosoma haematobium Malacological Review, 3, 121–126.Google Scholar
Malek, E. A. (1958) Natural and experimental infection of some bulinid snails in the Sudan with Schistosoma haematobium. Proceeding 6th International Congress of Tropical Medicine and Malaria, 2, 43–52.Google Scholar
Mandahl-Barth, G. (1958) Intermediate hosts of Schistosoma. African Biomphalaria and Bulinus. World Health Organization Monograph No. 37: Geneva.Google Scholar
Mandahl-Barth, G., Frandsen, F. and Jelnes, J. E. (1976) Bulinus sp. (2n = 36) from Salisbury, Rhodesia, a close relative of B. truncatus (Audouin), being a potential intermediate host of Schistosoma haematobium in south-east Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene, 70, 88.CrossRefGoogle Scholar
Mcclelland, W. J. F. (1967) Production of Schistosoma haematobium and Schistosoma mansoni cercariae in Tanzania. Experimental Parasitology, 20, 205–218.CrossRefGoogle ScholarPubMed
Mccullough, F. S. (1956) Transmission of Schistosoma haematobium by Bulinus sp. in the Kee district of the Gold Coast. Transactions of the Royal Society of Tropical Medicine and Hygiene, 50, 449–457.CrossRefGoogle Scholar
Mccullough, F. S. (1959) The susceptibility and resistance of Bulinus (Physopsis) globosus and Bulinus (Bulinus) truncatus rohlfsi to two strains of Schistosoma haematobium in Ghana. Bulletin of the World Health Organization, 20, 75–85.Google ScholarPubMed
Moore, D. V., Thillet, C. J. and Carney, D. M. (1953) Experimental infections of Bulinus truncatus with Schistosoma haematobium. Journal of Parasitology, 39, 215–221.CrossRefGoogle ScholarPubMed
Pitchford, R. J. (1965) Differences in the egg morphology and certain biological characteristics of some African and Middle Eastern schistosomes, genus Schistosoma, with terminal-spined eggs. Bulletin of the World Health Organization, 32, 105–120.Google ScholarPubMed
Schutte, C. H. J. (1966) Observations on two South African bulinid species of the truncatus group (Gastropoda, Planorbidae). Annals of Tropical Medicine and Parasitology, 60, 106–113.CrossRefGoogle Scholar
Webbe, G. and James, C. (1971a) A comparison of two geographical strains of Schistosoma haematobium. Journal of Helminthology, 45, 271–284.CrossRefGoogle ScholarPubMed
Webbe, G. and James, C. (1971b) Infra-specific variations of Schistosoma haematobium. Journal of Helminthology, 45, 403–413.CrossRefGoogle ScholarPubMed
Webbe, G. and James, C. (1972) Host-parasite relationships of Bulinus globosus and B. truncatus with strains of Schistosoma haematobium. Journal of Helminthology, 46, 185–199.CrossRefGoogle Scholar
Webbe, G., James, C. and Nelson, G. S. (1974) Schistosoma haematobium in the baboon (Papio anubis). Annals of Tropical Medicine and Parasitology, 68, 187–203.CrossRefGoogle ScholarPubMed
Wright, C. A. (1962) The significance of infra-specific taxonomy in bilharziasis. Ciba Foundation Symposium on Bilharziasis (eds Wolstenholme and O’Connor) pp. 103–120. J. & A. Churchill Ltd: London.CrossRefGoogle Scholar
Wright, C. A. (1966) Relationships between schistosomes and their molluscan hosts in Africa. Journal of Helminthology, 40, 403–412.CrossRefGoogle ScholarPubMed
Wright, C. A. (1971) Bulinus on Aldabra and the Subfamily Bulininae in the Indian Ocean area. Philosophical Transactions of the Royal Society of London (B), 260, 299–313.Google Scholar
Wright, C. A. and Bennett, M. S. (1976a) 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, 61, 228–233.CrossRefGoogle Scholar
Wright, C. A. and Knowles, R. J. (1972) Studies on Schistosoma haematobium in the laboratory. III. Strains from Iran, Mauritius and Ghana. Transactions of the Royal Society of Tropical Medicine and Hygiene, 66, 108–118.CrossRefGoogle Scholar