Methods: Methods of examination of diarrheogenic Escherichia coli (GB/T4789.6-2003) and isolation and enumeration of E. sakazakii from dehydrate infant formul recommended by FDA of USA were applied.

• 方法：参照GB/T4789.；6-2003致泻性大肠埃希氏菌检验和美国FDA《婴幼儿奶粉中坂崎肠杆菌检测方法》部分。