Abstract
A detailed knoledge of distribution patterns schistosome intermediate hsts and their populations dynamics and factors affecting these patterns will provide useful information about the possibilities and desirability of conducting snail control measures in various transmission situations. On the basis of various case studies the association between the occurence of human water contacts and the presence of schistosome intermediate hosts or infections in the intermediate hosts is illustrated. Other parameters affecting snail distribution patterns and density fluctuations are discussed. It is concluded that ecological studies on the intermediate host are extremely relevant, either to optimally apply existing control measures or to develop alternative measures of snail control, such as ecological or biological control.
schistosomiasis control; intermediate host snails; ecological studies
Ecological studies on the intermediate host snails and the relevance to schistosomiasis control
Henry Madsen1
WHO Collaborating Centre for Applied Medical Malacology and Schistosomiasis Control, Danish Bilharziasis Laboratory, Charlottenlund, Denmark
A detailed knoledge of distribution patterns schistosome intermediate hsts and their populations dynamics and factors affecting these patterns will provide useful information about the possibilities and desirability of conducting snail control measures in various transmission situations. On the basis of various case studies the association between the occurence of human water contacts and the presence of schistosome intermediate hosts or infections in the intermediate hosts is illustrated. Other parameters affecting snail distribution patterns and density fluctuations are discussed. It is concluded that ecological studies on the intermediate host are extremely relevant, either to optimally apply existing control measures or to develop alternative measures of snail control, such as ecological or biological control.
Full text available only in PDF format.
Texto completo disponível apenas em PDF.
Publication Dates
-
Publication in this collection
04 June 2009 -
Date of issue
1992
