Predicting the spatial distribution of Biomphalaria straminea, a potential intermediate host for Schistosoma mansoni, in China

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Habib M.R.; Guo Y.-H.; Lv S.; Gu W.-B.; Li X.-H.; Zhou X.-N.

Journal: Geospatial Health

Publisher: Page Press Publications

Publication Date: 29 November 2016

Volume / Issue: Volume 11 / Issue 3

Pages: 375–383

Article No.: 453

ISSN: 18271987

DOI: 10.4081/gh.2016.453

Scopus: View on Scopus

PubMed: 27903067

Document Type: Article

Access: All Open Access; Gold Open Access; Green Open Access

Authors and Affiliations

Habib M.R., Medical Malacology Laboratory, Theodor Bilharz Research Institute, Giza, Egypt, National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, China; Guo Y.-H., National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, China; Lv S., National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, China; Gu W.-B., National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, China; Li X.-H., Shenzhen Center for Disease Control and Prevention, Shenzhen, China; Zhou X.-N., National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, Shanghai, China

Abstract

Schistosomiasis is one of the most prevalent parasitic diseases impacting human health in the tropics and sub-tropics. The geographic distribution of Schistosoma mansoni, the most widespread species, includes areas in Africa, the Middle East, South America and the Caribbean. Snails of the genus Biomphalaria act as intermediate host for S. mansoni. Biomphalaria straminea is not indigenous in China but was accidentally introduced to Hong Kong from South America and has spread to other habitats in the southern parts of the country. This species is known for its great dispersal capacity that highlights the importance of the snail as a potential host for S. mansoni in China. In this connection, although no such infection has been recorded in the field so far, the continuous expansion of China’s projects in endemic areas of Africa and import of the infection via returning workers or visitors deserve attention. The purpose of this study was to map and predict the spatial distribution of B. straminea in China. Snail occurrence data were assembled and investigated using MaxEnt software, along with climatic and environmental variables to produce a predictive risk map. Of the environmental variables tested, the precipitation of warmest quarter was the most contribution factor for snail’s spatial distribution. Risk areas were found in southeastern China and it is expected that they will guide policies and control programmes to potential areas area of snail abundance and used for spatial targeting of control interventions for this invasive species. © M.R. Habib et al., 2016.

Keywords

Biomphalaria straminea; China; MaxEnt; Risk map; Schistosoma mansoni; Africa; Animals; Biomphalaria; Caribbean Region; Disease Vectors; Hong Kong; Humans; Middle East; Population Surveillance; Schistosomiasis mansoni; Snails; animal; Caribbean; disease carrier; growth, development and aging; health survey; human; isolation and purification; parasitology; snail; transmission

Citation Information

Scopus Citations: 20

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