title: Evaluating the risk of Schistosoma mansoni transmission in mainland China.
abstract: Biomphalaria straminea, an intermediate host of Schistosoma mansoni, is predominantly distributed in the South Americas and Caribbean; however, this snail, as an invasive species, was introduced to Shenzhen, southern China, in 1981, and recent epidemiologic surveys demonstrate that the distribution of B. straminea has expanded across the Zhujiang River Basin, South China. In the presence of continuous importation of S. mansoni-infected cases, there is a growing concern about the transmission of S. mansoni in China. To evaluate the risk of S. mansoni transmission in China, we tested the compatibility of B. straminea captured from the snail habitats in southern China with S. mansoni in laboratory. We detected no S. mansoni infections in B. straminea following exposure to the parasite larvae at snail/miracidium ratios of 1:5, 1:10, 1:20, 1:40, and 1:80, while 6.7 to 66.7 % infections occurred in the control Biomphalaria glabrata depending on the ratio. The results of the present study demonstrate that the invasive B. straminea snails seem to be incompatible with S. mansoni, suggesting a low risk of S. mansoni transmission in mainland China.
authors.affiliation: Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.|Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.|Jiangsu Institute of Parasitic Diseases, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.
authors.forename: Guoli
authors.initials: G
authors.lastname: Qu
authors.affiliation: Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wangweijipd@163.com.|Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wangweijipd@163.com.|Jiangsu Institute of Parasitic Diseases, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wangweijipd@163.com.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.affiliation: Wuxi No. 2 People's Hospital, No. 68 Zhongshan Road, Wuxi City, Jiangsu Province, 214002, China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Lu
authors.affiliation: Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.|Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.|Jiangsu Institute of Parasitic Diseases, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China.
authors.forename: Jianrong
authors.initials: J
authors.lastname: Dai
authors.affiliation: Shenzhen Center for Disease Control and Prevention, No. 8 Longyuan Road, Nanshan District, Shenzhen City, Guangdong Province, 518055, China.
authors.forename: Xiaoheng
authors.initials: X
authors.lastname: Li
authors.affiliation: Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wxliangyousheng@163.com.|Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wxliangyousheng@163.com.|Jiangsu Institute of Parasitic Diseases, 117 Yangxiang, Meiyuan, Wuxi City, Jiangsu Province, 214064, China. wxliangyousheng@163.com.
authors.forename: Yousheng
authors.initials: Y
authors.lastname: Liang
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000469:parasitology*; D002681:China; D006801:Humans; D018570:Risk Assessment; D012550:Schistosoma mansoni; D012555:Schistosomiasis mansoni / Q000635:transmission*; D013045:Species Specificity
keywords: Biomphalaria straminea; Compatibility; Schistosoma mansoni; Transmission risk