在临床細菌学检查中,常常遇到一些細菌性状与大肠杆菌近似,同时却又具有某些致病性肠道杆菌(沙門氏菌、痢疾杆菌等)的某些特征。在实际工作中将这些細菌概称之为副大肠杆菌。这些細菌的检出,要求回答許多問題:如与大肠杆菌、沙門氏菌、痢疾杆菌等的鉴別問題,在分类学上的地位問題,与临床和預防医学实践的关系問題等。这些問題在肠道 In clinical bacteriology, it is common to encounter some bacterial traits similar to that of E. coli, but at the same time have certain features of certain pathogenic enteric bacilli (Salmonella, Shigella, etc.). In practice, these bacteria will be referred to as Escherichia coli. The detection of these bacteria requires answering many questions such as the identification of E. coli, Salmonella, Shigella, etc., the taxonomic status, the relationship with clinical and preventive medicine practices, and so on. These problems are in the gut