ArticleParasites & vectors2017
Distribution and current infection status of Biomphalaria straminea in Hong Kong.
Article in Parasites & vectors, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 18 citations in OpenAlex.
- Biomphalaria snails release immune proteins in aquaculture water that influence egg production and development.Scientific reports · 2025Article
- The morphology, genetic structure, and haplotype distribution of the invasive freshwater snails Biomphalaria straminea and Physa acuta in Guangdong, China.Tropical medicine and health · 2025Article
- Distribution of the schistosome intermediate snail host Biomphalaria pfeifferi in East Africa's river systems and the prevalence of Schistosoma mansoni infection.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2025Article
- Status Quo and Future Perspectives of Molecular and Genomic Studies on the GenusInternational journal of molecular sciences · 2023Review
- Potential risk of colonization of Bulinus globosus in the mainland of China under climate change.Infectious diseases of poverty · 2022Article
- Genome of the ramshorn snail Biomphalaria straminea-an obligate intermediate host of schistosomiasis.GigaScience · 2022Article
- Invasion and Dispersal ofFrontiers in medicine · 2021Review
- The potential risk of Schistosoma mansoni transmission by the invasive freshwater snail Biomphalaria straminea in South China.PLoS neglected tropical diseases · 2020Article
- Article
- Morphological and molecular characterization of invasive Biomphalaria straminea in southern China.Infectious diseases of poverty · 2018Article
- Spatial distribution and habitat suitability of Biomphalaria straminea, intermediate host of Schistosoma mansoni, in Guangdong, China.Infectious diseases of poverty · 2018Article
- Prediction of the potential global distribution for Biomphalaria straminea, an intermediate host for Schistosoma mansoni.PLoS neglected tropical diseases · 2018Article
- Imported African schistosomiasis and the potential risk of transmission in China.Pathogens and global health · 2018Article
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Authors and funding
12 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSchistosomiasis, also generally known as snail fever, is a parasitic disease caused by trematode flatworms of the genus Schistosoma. In Hong Kong and mainland China, the freshwater snail Biomphalaria straminea has been introduced and has the potential to transmit intestinal schistosomiasis caused by S. mansoni, a parasite of man which has a wide distribution in Africa and parts of the New World, especially Brazil. The first identification of B. straminea in Hong Kong dates back to the 1970s, and its geographical distribution, phylogenetic relationships, and infection status have not been updated for more than 30 years. Thus, this study aims to reveal the distribution and current infection status of B. straminea in contemporary Hong Kong.
methodsSnails were collected from different parts of Hong Kong from July 2016 to January 2017. Both anatomical and molecular methods were applied to identify B. straminea. Cytochrome c oxidase subunit 1 (cox1), internal transcribed spacer 1 (ITS1), 5.8S rDNA, internal transcribed spacer 2 (ITS2), and 16S ribosomal DNA (rDNA) were sequenced from individual snails and analyzed. To detect the presence of S. mansoni, both biopsy and PCR analyses were carried out.
resultsUsing both anatomical and molecular analyses, this study demonstrated the existence of black- and red-coloured shell B. straminea in different districts in the New Territories in Hong Kong, including places close to the mainland China border. None of the B. straminea (n = 87) investigated were found to be infected with S. mansoni when tested by biopsy and PCR. The Hong Kong B. straminea are genetically indistinguishable, based on the chosen molecular markers (cox1, ITS1-5.8S-ITS2, and 16S rDNA), and are similar to those obtained in mainland China and South America.
conclusionBiomphalaria straminea is now well established in freshwater habitats in Hong Kong. No evidence of infection with S. mansoni has been found. Surveillance should be continued to monitor and better understand this schistosomiasis intermediate host in mainland China and Hong Kong.
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