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Susceptibility of Saudi Bulinus truncatus to infection with Egyptian Schistosoma haematobium with observations on protein electrophoretic pattern of the snails



Susceptibility of Saudi Bulinus truncatus to infection with Egyptian Schistosoma haematobium with observations on protein electrophoretic pattern of the snails



Veterinary Parasitology 161(3-4): 207-212



A laboratory-based susceptibility study was carried out on snails Bulinus truncatus collected from highland Abha, Asser, Saudi Arabia to Egyptian Schistosoma haematobium to investigate the potential role of Saudi B. truncatus in the transmission of Egyptian S. haematobium and to know the possibility that the parasite might be able to spread into Saudi Arabia. The results revealed that, compared to Egyptian snails, survival of snails at day 25 post-exposure was significantly higher in Saudi B. truncatus ones. The infection rate was higher in Saudi snails as compared to Egyptian ones. The incubation period was shorter in Saudi snails but the duration of cercarial shedding was longer in the Egyptian than in the Saudi snails. The production of S. haematobium cercariae per snail was higher in Egyptian snails than in Saudi ones. These results suggest that Saudi B. truncatus can play a role in the transmission of Egyptian S. haematobium in Saudi Arabia and therefore this parasite might be able to spread into the Kingdom. In addition, electrophoretic analysis of tissue soluble proteins was done to determine the effects of the parasite on both the Egyptian and Saudi snails. The electrophoretic analysis revealed the occasional presence or absence of certain bands in infected snails in comparison with non-infected one.

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Accession: 025623939

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PMID: 19329256

DOI: 10.1016/j.vetpar.2008.12.026


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