In July, stool samples confirmed E. coli as the cause of illness, though the exact food source of the bacterium was not confirmed.

今年7月，粪便样本证实病因是大肠杆菌，但病因菌确切的食物来源，还没有得到确认。

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In July, stool samples confirmed E. coli as the cause of illness, though the exact food source of the bacterium was not confirmed.

今年7月，粪便样本证实病因是大肠杆菌，但病因菌确切的食物来源，还没有得到确认。

youdao