[Nonenteric escherichiosis and the problem of human reproductive health].

The contribution of nonenteric Escherichia infections (NEI) to the formation of male and female infertility is analyzed. The negative influence of NEI, and particularly pyelonephritis, on the course of pregnancy, parturition and the postnatal period is shown. The role of E. coli in the development of life-threatening meningoencephalitides, pneumonia, sepsis in newborn infants is emphasized, NEI risk factors are systematized with due regard to concrete stages in the pathogenesis of this pathology. Phenotypic differences between the causative agents of NEI and nonpathogenic and diarrhea-inducing E. coli are characterized.