[Enzyme and serological characteristics of enterobacteria isolated from the urine of children with pyelonephritis].

The results obtained in the study of microflora in urine samples collected from 157 children with pyelonephritis during the period of 1979-1981 are presented. Among 793 isolated colonies, enterobacteria constituted 80.2%; of these, 60% were E. coli represented by known uropathogenic varieties with the prevalence of serogroups 06, 02, 01, 04 and 075. Second in the frequency of occurrence among enterobacteria were Kl. pneumoniae, for the first time found to include 14 varieties in respect to K-antigen with the prevalence of serovars K47, K22 and K14. The preliminary data indicate the possibility of the relationship between the species of the isolated microorganisms or their serological variety and the clinical forms of pyelonephritis in children, and in particular, the isolation of Kl. pneumoniae in the active phase in chronic obstructive continuously recurring processes.