Analysis of pregnancy course, labor and early neonatal period at 294 women and their new-born children has been made for the estimation of the efficacy of different antibacterial therapy variants of urogenital clamidiosis during the second half of pregnancy period. The danger of abortion and chronic intrauterine fetal hypoxia are most often gestational process complications revealed against chronic urogenital clamidiosis. The use of sumamed is course dose of 3 g is an optimum pharmacotherapeutic regimen during the second half of pregnancy period.

Comparison of clinical manifestation of various forms chlamydial infection with a ultrasonic picture and cytomorphological characteristics decidua basalis in the first trimester of pregnancy was carried out. The basic clinical markers were colpitis, endocervicitis and threat of fetus wastage. At percistence the pathogene more significant changes echoscopy pictures were found. Expressed stromal edema and increase of expression of a receptor to IL-2 on a lymphocyte membrane at active chlamydial infection were found during morphological research of the decidual tissue. Stability of a population of the big granular decidual lymphocyte СD56++ at any form of urogenital chlamydiosis was revealed.