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从市场购得淡水鱼15种共358条及2种淡水虾,检查发现8种淡水鱼有华支睾吸虫囊蚴感染,感染率
358 freshwater fish and 2 freshwater shrimp were purchased from the market. Eight freshwater fish were found to have Clonorchis sinensis metacercariae infection, the infection rate