ArticleThe Journal of parasitology2021
Comparative Vectorial Competence of Biomphalaria sudanica and Biomphalaria choanomphala, Snail Hosts of Schistosoma mansoni, From Transmission Hotspots In Lake Victoria, Western Kenya.
Article in The Journal of parasitology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 27 citations in OpenAlex.
- Direct measurement ofbioRxiv : the preprint server for biology · 2026Article
- Ecological influences on host-parasite dynamics amongFrontiers in parasitology · 2026Article
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- Schistosome exposure and diet induced effects on candidate immune gene expression in an African snail vector.Journal of helminthology · 2025Article
- The Senegalese and Brazilian strains of Schistosoma mansoni exhibit high compatibility with Biomphalaria pfeifferi and Biomphalaria glabrata.Parasites & vectors · 2025Article
- Schistosome exposure and diet induced effects on candidate immune gene expression in an African snail vector.bioRxiv : the preprint server for biology · 2025Article
- Mating system ofCurrent research in parasitology & vector-borne diseases · 2025Article
- Molecular xenomonitoring of Schistosoma mansoni infections in Biomphalaria choanomphala at Lake Victoria, East Africa: Assessing roles of abiotic and biotic factors.PLoS neglected tropical diseases · 2025Article
- A RAPID DIAGNOSTIC PCR ASSAY FOR THE DETECTION OF SCHISTOSOMA MANSONI IN THEIR SNAIL VECTORS.The Journal of parasitology · 2024Article
- Diet of schistosome vectors influences infection outcomes.Ecosphere (Washington, D.C) · 2024Article
- Article
- The genome and transcriptome of the snailbioRxiv : the preprint server for biology · 2023Article
- Seasonal patterns of Schistosoma mansoni infection within Biomphalaria snails at the Ugandan shorelines of Lake Albert and Lake Victoria.PLoS neglected tropical diseases · 2023Article
- A genome sequence for Biomphalaria pfeifferi, the major vector snail for the human-infecting parasite Schistosoma mansoni.PLoS neglected tropical diseases · 2023Article
- Multi-strain compatibility polymorphism between a parasite and its snail host, a neglected vector of schistosomiasis in Africa.Current research in parasitology & vector-borne diseases · 2023Article
- Genomic analysis of a parasite invasion: Colonization of the Americas by the blood fluke Schistosoma mansoni.Molecular ecology · 2022Article
- Host preference of field-derivedEcosphere (Washington, D.C) · 2022Article
- Variation in water contact behaviour and risk of Schistosoma mansoni (re)infection among Ugandan school-aged children in an area with persistent high endemicity.Parasites & vectors · 2022Observational
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8 authors at 2 institutions in 1 country.
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Abstract
Schistosoma mansoni, which causes human intestinal schistosomiasis, continues to be a major public health concern in the Lake Victoria basin in western Kenya, with Biomphalaria sudanica (a shoreline inhabiting snail) and Biomphalaria choanomphala (a deep-water snail) playing roles in transmission. A recent study showed that B. sudanica was abundantly present near all study villages on the lakeshore, but B. choanomphala was significantly more abundant near villages known to be persistent transmission hotspots. The present study investigated the relative compatibility of B. sudanica and B. choanomphala with S. mansoni. A reciprocal cross-infection experiment used young adult F1 generation B. sudanica and B. choanomphala that were exposed to either 1, 5, or 10 sympatric or allopatric human-derived S. mansoni miracidia. Three weeks post-exposure (PE) and weekly thereafter, the snails were counted and screened for schistosome cercariae, and at 7 wk PE, total cercariae shed during a 2 hr period by each infected snail was determined. Pre-patent periods for S. mansoni in both B. sudanica and B. choanomphala were similar, and most snails in all exposure combinations started shedding cercariae 5 wk PE. Prevalences were significantly higher in B. choanomphala (12.2-80.9%) than in B. sudanica (5.2-18.6%) at each dose, regardless of whether miracidia were of an allopatric or a sympatric source (P < 0.0001). Overall, the odds of a snail becoming infected with 5 or 10 miracidia were significantly higher than the odds of being infected with 1 miracidium, (P < 0.0001), and fewer cercariae were produced by snails exposed to single as compared to 5 or 10 miracidia. On average, B. choanomphala produced more cercariae ( = 458, SD = 414) than B. sudanica ( = 238, SD = 208) (P < 0.0001). These results suggest that B. choanomphala is more compatible with S. mansoni than B. sudanica. Though B. choanomphala can be found in shallow shoreline waters, it is, for the most part, a deeper-water taxon. Because dredging is a relatively inefficient means of sampling, B. choanomphala is likely underestimated with respect to its population size, the number of S. mansoni-positive snails, and its role in maintaining transmission.
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