方法：随机采取南京市各大宾馆的海水产品，进行大肠埃希菌o 157：H7的检测，进行常规生化和血清学、毒力基因的PCR检测。
Methods: Seafoods were collected randomly from different hotels in Nanjing and EHEC O157: H7 was detected and regular biochemistry, serology and virulent genes detection by PCR were carried out.
方法：随机采取南京市各大宾馆的海水产品，进行大肠埃希菌o 157：H7的检测，进行常规生化和血清学、毒力基因的PCR检测。
Methods: Seafoods were collected randomly from different hotels in Nanjing and EHEC O157: H7 was detected and regular biochemistry, serology and virulent genes detection by PCR were carried out.
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