Abstract
We surveyed the strains which had the specific adhesive functions to human and swine small intestine in the Escherichia coli strains isolated from clinical materials and swine feces. Incidences of these specific adhesive strains were shown to be not so high being around 10% or lower. Among those, the incidence of the specific adhesive strains to swine small intestine was higher in the clinically isolated strains than in swine fecal strains. In contrast the incidence of the specific adhesive strains to human small in-testine was higher in the swine fecal strains than in the clinically isolated strains. Since these strains were collected from the materials not related to diarrhea, the detected specific adhesive strains were carried by animals not susceptible for them as non-pathogenic resident flora. These strains could by potentially pathogenic to the susceptible host animals.
