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

Autor: André Théron, Joseph Jourdane, J. Vercruysse, David Rollinson, Bonnie L. Webster, Dominique De Clercq, Bruno Gryseels, L-A Tchuem Tchuenté, Vaughan R. Southgate, M Sene
Jazyk: angličtina
Rok vydání: 2001
Předmět:
Zdroj: Memórias do Instituto Oswaldo Cruz., Vol 96, Iss suppl, Pp 75-78 (2001)
Memórias do Instituto Oswaldo Cruz, Volume: 96 Supplement, Pages: 75-78, Published: SEP 2001
Scopus-Elsevier
ISSN: 1678-8060
0074-0276
Popis: 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.
Databáze: OpenAIRE