First detection and genetic characterization of Toxoplasma gondii in market-sold oysters in China

文献类型： 外文期刊

第一作者： Cong, Wei

作者： Cong, Wei;Wang, Xin-Chen;Chen, Guan-Jun;Cong, Wei;Zhang, Nian-Zhang;Hou, Jun-Ling;Ma, Jian-Gang;Zhu, Xing-Quan;Zhu, Xing-Quan

作者机构：

关键词： Toxoplasma gondii;Market-sold oysters;Detection;China

期刊名称：INFECTION GENETICS AND EVOLUTION （ 影响因子：3.342； 五年影响因子：3.188 ）

ISSN： 1567-1348

年卷期： 2017 年 54 卷

页码：

收录情况： SCI

摘要： Toxoplasma gondii oocysts in the water might be filtered through the gills of shellfish in the process of feeding, and can be concentrated in the digestive glands. Consumers might become infected through ingestion of the shellfish unless they are discharged or inactivated by the shellfish. Thus, the purpose of this study was to evaluate the presence of T. gondii in market-sold oysters in China under natural conditions using amolecular approach. A total of 998 oysters were collected from markets in four cities (Weihai, Qingdao, Yantai and Rizhao) of Shandong province, eastern China. Of these, 26 samples (2.61%) were tested positive by nested PCR amplification of T. gondii B1 gene. Only one of the 26 positive samples was typed completely, and was identified as ToxoDB Genotype #9. This is first report of T. gondii in market-sold oysters in China, suggesting that oysters have the ability to filter and retain T. gondii oocysts in their tissues, which represents a risk to public health because oysters are frequently ingested in nature. (C) 2017 Published by Elsevier B.V.

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