[The information value of Escherichia coli persistence markers in the bacteriological diagnosis of chronic pyelonephritis in children].

In 181 E. coli strains isolated from sick children having chronic pyelonephritis and risk factors of its development, as well as from healthy children, the complex of phenotypic signs, and among them bacterial persistence markers (antilysozyme, anticomplementary and "anti-interferon" activity), adhesive capacity, antibiotic resistance and colicinogenicity, were analyzed. The specific bioprofiles of E.