Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-27T13:59:28.366Z Has data issue: false hasContentIssue false
  • English
  • Français

Seasonal patterns in the transmission of Schistosoma haematobium in Attaouia, Morocco

Published online by Cambridge University Press:  05 June 2009

K. Khallaayoune  and
H. Laamrani
K. Khallaayoune
Affiliation:
Départment de Parasitologie et Maladies Parasitaires, Institut Agronomique et Vétérinaire Hassan II, B.P. 6202, Rabat-Instituts, Morocco
H. Laamrani
Affiliation:
Départment de Parasitologie et Maladies Parasitaires, Institut Agronomique et Vétérinaire Hassan II, B.P. 6202, Rabat-Instituts, Morocco
Get access Rights & Permissions [Opens in a new window]

Abstract

In the Attaouia area, the density of Bulinus truncatus (Audouin, 1827), was monitored monthly for a period of one year in correlation with weather variations. Snails were active throughout the year and particularly abundant at the end of spring and summer. Two snail generations were found to overlap. The infection rate of B. truncatus reached a maximum of 3·5% in the summer when human water contact was frequent. A selective survey conducted in the village of Lamyayha showed that the prevalence of infection with S. haematobium among the local population was 21·2% who were passing from 10 to 80 eggs per 10 ml of urine.

Keywords

Schistosoma haematobiumBulinus truncatusepidemiologyMoroccoTrematoda
Type
Research Article
Information
Journal of Helminthology , Volume 66 , Issue 2 , June 1992 , pp. 89 - 95
Copyright
Copyright © Cambridge University Press 1992

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

Appleton, C. C. (1978) Review of literature on biotic factors influencing the distribution and life cycles of bilharziasis intermediate host snails. Malacological Review, 11, 1–25.Google Scholar
Babiker, A., Fen Wick, A., Daffalla, A. A. & Amin, M. A. (1985) Focality and seasonality of Schistosoma mansoni transmission in the Gezira Irrigated Area, Sudan. Journal of Tropical Medicine and Hygiene, 88, 57–63.Google ScholarPubMed
Cridland, C. C. (1958) Ecological factors affecting the numbers of snails in a permanent stream. Journal of Tropical Medicine and Hygiene, 61, 16–20.Google Scholar
Dazo, B. C., Hairston, N. G. & Dawood, I. K. (1966) The ecology of Bulinus truncatus and Biomphalaria alexandrina and its implications for the control of bilharziasis in the Egypt-49 Project area. Bulletin of the World Health Organization, 34, 339–356.Google Scholar
Khallaayoune, K. & Elhari, M. (1991) Variations saisonnières de l'infestation par Fasciola hepatica chez la chèvre dans la région du Haouz (Maroc). Annales de Recherches Vélérinaires, 22, 219–226.Google Scholar
Lwambo, N. J. S. (1988) Transmission of urinary schistosomiasis in Sukumaland, Tanzania. I. Snail infection rates and incidence of infection in school children. Journal of Hetminthology, 62, 213–217.CrossRefGoogle ScholarPubMed
Moussa, A. H. & Abou El-Hassan, A. A. (1972) The effect of water temperature on the snail intermediate hosts of schistosomiasis in Egypt. Journal of the Egyptian Medical Association, 55, 148–165.Google Scholar
Skiff, C. J., Evans, A., Yiannakis, C. & Eardley, M. (1975) Seasonal influence on the production of Schistosoma haematobium and S. mansoni cercariac in Rhodesia. international Journal for Parasitology, 5, 119–123.Google Scholar
Woolhouse, M. E. J. & Chandiwana, S. K. (1989) Spatial and temporal heterogeneity in the population dynamics of Bulinus globosus and Biomphalaria pfeifferi and the epidemiology of their infection with schistosomes. Parasitology, 98, 21–34.CrossRefGoogle ScholarPubMed
Woolhouse, M. E. J. & Chandiwana, S. K. (1990) Temporal patterns in the epidemiology of schstosome infections of snails: a model for field data. Parasitology, 100, 247–253.CrossRefGoogle Scholar