The monograph summarizes clinical and laboratory indicators of the course of respiratory viral infections in pregnant women. The results of scientific and practical studies, as well as their own clinical, instrumental and functional observations performed in a large contingent of pregnant women with respiratory viral infection are presented. The questions of etiology, pathogenesis, anamnesis, complex diagnostics, prognosis and prophylaxis are discussed. Methods of prognosis and prevention of possible complications in pregnancy, labor and postpartum period in women with respiratory viral infections in different trimesters of pregnancy are summarized and recommended. A number of diagnostic and clinical examples from our own observations are given.The publication is intended for obstetrician-gynecologists and doctors of related specialties.