[Chlamydia infection. A common, usually mild, infection with often severe consequences].

Today, chlamydiae are among the most frequently sexually transmitted organisms. At least 5 to 10% of young, sexually active adults, will have a florid chlamydial infection. On account of its chronic nature, the paucity of symptoms, and the difficulty in diagnosing it, this infection is still underdiagnosed. The spectrum of the manifested pathologies range from genital to abdominal lesions, to conjunctivitis, pneumonia and arthritis. On account of the specific intracellular reproduction cycle, antibiotic therapy is not always able to completely clear up the infection. Today, chlamydial infection is the most common cause of infection-related sterility. During parturition, the neonate is often infected, with subsequent chronicity and sequelae.