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  • Title: The influence of Calicophoron microbothrium on the susceptibility of Bulinus tropicus to Schistosoma bovis.
    Author: Southgate VR, Brown DS, Warlow A, Knowles RJ, Jones A.
    Journal: Parasitol Res; 1989; 75(5):381-91. PubMed ID: 2726720.
    Abstract:
    A total of 480 snails were collected from 3 habitats on the Mau Escarpment, Kenya, and were identified as Bulinus tropicus. Of the 351 snails examined alive in London, 75 were infected with Calicophoron microbothrium, 39 with C. microbothrium and Schistosoma bovis, 1 with S. bovis, 24 with other species of trematodes and 212 were uninfected. Examination of digestive glands of B. tropicus either uninfected or infected with both C. microbothrium and S. bovis demonstrated that it is possible to differentiate between parasite and host enzyme activity using glucose phosphate isomerase. However, malate dehydrogenase enables a much clearer differentiation between the enzyme activity of the schistosome and that of the amphistome. Laboratory snail infection experiments demonstrated that it is possible successfully to infect B. tropicus with S. bovis if the snails have previously been exposed to miracidia of C. microbothrium.
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