Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
Mem. Inst. Oswaldo Cruz
;
96(suppl): 75-78, Sept. 2001.
Article
in English
| LILACS
| ID: lil-295886
ABSTRACT
The construction of the Diama dam on the Senegal river, the Manantali dam on the Bafing river, Mali and the ensuing ecological changes have led to a massive outbreak of Schistosoma mansoni in Northern Senegal, associated with high intensity of infections, due to intense transmission, and the creation of new foci of S. haematobium. Data on the vectorial capacity of Biomphalaria pfeifferi from Ndombo, near Richard Toll, Senegal are presented with sympatric and allopatric (Cameroon) S. mansoni. Comparisons are made on infectivity, cercarial production, chronobiology of cercarial emergence and longevity of infected snails. Recent data on the intermediate host specificity of different isolates of S. haematobium from the Lower and Middle Valley of the Senegal river basin (SRB) demonstrate the existence of at least two strains of S. haematobium. The role of Bulinus truncatus in the transmission of S. haematobium in the Lower and Middle Valleys of the SRB is reviewed. Both S. haematobium and S. mansoni are transmitted in the same foci in some areas of the SRB
Full text:
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Index:
LILACS (Americas)
Main subject:
Schistosoma haematobium
/
Schistosoma mansoni
/
Dams
/
Schistosomiasis mansoni
/
Schistosomiasis haematobia
/
Fresh Water
Limits:
Animals
/
Humans
Country/Region as subject:
Africa
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2001
Type:
Article
/
Project document
Affiliation country:
Belgium
/
Cameroon
/
France
/
Senegal
/
United kingdom
Institution/Affiliation country:
Faculty of Veterinary Medicine/BE
/
IRD/SN
/
Institute of Tropical Medicine/BE
/
Laboratoire de Biologie Animale/FR
/
Programme Espoir/SN
/
The Natural History Museum/GB
/
The University of Yaoundé/CM
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