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Schistosoma haematobium in Lake Malaŵi: susceptibility and molecular diversity of the snail hosts Bulinus globosus and B. nyassanus

Published online by Cambridge University Press:  01 December 2008

J.R. Stauffer Jr*
Affiliation:
School of Forest Resources, Penn State University, University Park, PA16802, USA
H. Madsen
Affiliation:
DBL Centre for Health Research and Development, Faculty of Life Science, University of Copenhagen, Thorvaldsenvej57, 1871Frederiksberg C, Denmark
B. Webster
Affiliation:
The Natural History Museum, Cromwell Road, LondonSW7 5BD, UK
K. Black
Affiliation:
School of Forest Resources, Penn State University, University Park, PA16802, USA
D. Rollinson
Affiliation:
The Natural History Museum, Cromwell Road, LondonSW7 5BD, UK
A. Konings
Affiliation:
PO Box 13608, El Paso, TX79913, USA
*
*E-mail: vc5@psu.edu

Abstract

Intermediate hosts of Schistosoma haematobium, the causative agent of urinary schistosomiasis, in Lake Malaŵi include: Bulinus globosus, a member of the B. africanus group and B. nyassanus, a diploid member of the B. truncatus/tropicus species complex. We compared genetic variability between isolates of S. haematobium from the southern part of the lake (Cape Maclear), where both B. globosus and B. nyassanus play a role as intermediate hosts, and isolates from the northern part, where only B. globosus is host. Data show that the S. haematobium isolates from these two areas of Lake Malaŵi cannot be distinguished using nuclear or mitochondrial sequences and are capable of cross-infections.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2008

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