[Diagnostic significance of opportunistic bacteria in acute intestinal infections].

A study was made of the rate of the cultivation of opportunistic bacteria (OB) from the feces of different groups of patients, normal persons and those examined in accordance with epidemic indications as well as of serological modulations in autogenous strains of the bacteria. The rate of the cultivation of the different types of OB in the different groups, in inpatients and outpatients, and the character of the serological modulations in them depending on the OB type and the group under examination were different. Evolution in the specific composition of OB over the recent 20 years is demonstrated. The principles of evaluating the diagnostic importance of OB cultivated from the feces of patients and normal persons are worded. Five possible versions of the diagnostic interpretation of OB demonstration in human feces are presented.