In recent decades, the role of anthroponotic chlamydia has been steadily increasing in human pathology. Even in ancient civilizations around the world, people suffered from trachoma, a disease caused by Chlamydia trachomatis, which led to complete blindness. It was only in the middle of the 20th century that it was possible to finally decipher the nature of the pathogen and find ways to control and prevent it. But the infection has occupied new niches in the human body: the urogenital, respiratory, gastrointestinal tract, can affect the musculoskeletal, nervous systems, and are also one of the most common causes of modern conjunctivitis — up to 30—50% of cases are caused by chlamydial etiology (paratrachoma). Venereal lymphogranuloma, which was considered an endemic disease of hot countries, crossed the borders of Europe, the USA, and Russia at the beginning of the 21st century. Respiratory chlamydia is very common, more than 50% of patients with respiratory pathology have antibodies to C. pneumoniae. Urogenital chlamydia is one of the most common infections of modern humans, contributes to the attachment of other pathogens and often leads to impaired fertility and reproductive function, including infertility.

chlamydia infection, trachoma, venereal lymphogranuloma, urogenital chlamydia, respiratory chlamydia, history of struggle.