[Various debatable questions of epidemiology of intestinal infections. II. Interrrelationship between the intensity of enterobacteria accumulation in food and their pathogenic dose].

Experiments carried out by various methods demonstrated that the intensity of accumulation of various enterobacterial species in food and artificial nutrient medium was different: typhoid bacilli reproduced less intensively, reproduction of E. coli was the most intensive; as to other salmonellae and Sh. sonnei--they occupied an intermediate position. It is supposed that the rate of enterobacterial multiplication was an evolutionally justified sign of the species and was to a definite extent proportional to the pathogenic dose.