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O157:H7的检测,进行常规生化和血清学、毒力基因的PCR检测。