Schistosoma mansoni cercariae from post-aestivated Biomphalaria pfeifferi remain motile for 20 hours after release. Thereafter, their activity decreases with age. The difference in mortality rate of cercariae from aestivated and non-aestivated B. pfeifferi studied here proved to be statistically significant (P < 0.05) within the first 10 hours of the experimental period. Results of the percentage recovery of worms from different mouse organs infected with cercariae from aestivated and non-aestivated snails varied. The two main organs infected were the liver and intestine. In conclusion, the penetration, migration and maturation of cercariae into adult worms were not affected by the aestivation of B. pfeifferi.
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http://dx.doi.org/10.1080/09674845.2004.11732659 | DOI Listing |
PLoS Negl Trop Dis
December 2024
CBGP, IRD, CIRAD, INRAE, Institut Agro, Université de Montpellier, Montpellier, France.
Schistosomiasis is a neglected tropical disease of public health significance. In view of its elimination as a public health problem by 2030, adopting a One Health approach is necessary, considering its multidimensional nature. Animal reservoirs, in particular, pose a significant threat to schistosomiasis control in Africa and beyond.
View Article and Find Full Text PDFParasit Vectors
December 2024
Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK.
Background: Intestinal schistosomiasis was confirmed endemic in Mangochi District, Malawi, in May of 2018 following an unexpected encounter with discreet populations of Biomphalaria spp. freshwater snails during routine malacological surveillance activities. Since then, only limited malacological surveillance of Biomphalaria has been carried out, and so the distribution of Biomphalaria populations in this area is currently unclear.
View Article and Find Full Text PDFTrans R Soc Trop Med Hyg
December 2024
School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK.
Sci Total Environ
December 2024
Laboratory of Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; Water Research Group, Unit for Environmental Sciences and Management, North-West University, South Africa.
Vet Sci
May 2024
School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa.
This study aimed at determining the identity of freshwater snails collected from selected water habitats frequented by wildlife as source of drinking water in the Matebeleland region of Zimbabwe and further screening the identified snails for natural infections with amphistomes using PCR. A total of 487 freshwater snails were collected from six areas in the Matebeleland region of Zimbabwe for identification and screening of amphistome infection. Eight freshwater snail species were morphologically identified and , and were confirmed using the COI gene.
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