Studies on the biology of schistosomiasis with emphasis on the Senegal river basin

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 creatio...

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Main Authors: Southgate VR, Tchuem Tchuenté L-A, Sène M, De Clercq D, Théron A, Jourdane J, Webster BL, Rollinson D, Gryseels B, Vercruysse J
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2001-01-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000900010
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author Southgate VR
Tchuem Tchuenté L-A
Sène M
De Clercq D
Théron A
Jourdane J
Webster BL
Rollinson D
Gryseels B
Vercruysse J
author_facet Southgate VR
Tchuem Tchuenté L-A
Sène M
De Clercq D
Théron A
Jourdane J
Webster BL
Rollinson D
Gryseels B
Vercruysse J
author_sort Southgate VR
collection DOAJ
description 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.
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spelling doaj.art-0cdcc663a672442d9cd6a7412fd368e42023-09-02T19:07:05ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602001-01-0196suppl7578Studies on the biology of schistosomiasis with emphasis on the Senegal river basinSouthgate VRTchuem Tchuenté L-ASène MDe Clercq DThéron AJourdane JWebster BLRollinson DGryseels BVercruysse JThe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000900010Schistosoma mansoniSchistosoma haematobiumBiomphalaria pfeifferiSenegal river basin
spellingShingle Southgate VR
Tchuem Tchuenté L-A
Sène M
De Clercq D
Théron A
Jourdane J
Webster BL
Rollinson D
Gryseels B
Vercruysse J
Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
Memorias do Instituto Oswaldo Cruz
Schistosoma mansoni
Schistosoma haematobium
Biomphalaria pfeifferi
Senegal river basin
title Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
title_full Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
title_fullStr Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
title_full_unstemmed Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
title_short Studies on the biology of schistosomiasis with emphasis on the Senegal river basin
title_sort studies on the biology of schistosomiasis with emphasis on the senegal river basin
topic Schistosoma mansoni
Schistosoma haematobium
Biomphalaria pfeifferi
Senegal river basin
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000900010
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