[Effect of metabolism products of Shigella sonnei, Sh. flexneri and Sh. shigae on proteolytic activity of the organism connective tissue].

The activity of proteolytic enzymes, neutral proteinases and cathepsins E+D, was determined in homogenates from the tissues of capsules formed around diffusion chambers with shigella (Shigella sonnei, Sh. flexneri, Sh. shigae) 1, 2, 3, 5 and 10 days after their implantation to the abdominal cavity of rabbits.

[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.