Menstruation, periodic discharge from the vagina of blood, secretions, and disintegrating mucous membrane that had lined the uterus. 1  The biological significance of the process in humans can best be explained by reference to the reproductive function in other mammals.
Chlamydia is a common sexually transmitted disease (STD) caused by infection with Chlamydia trachomatis. It can cause cervicitis in women and urethritis and proctitis in both men and women.
â¢Psittacosis is a lower respiratory disease caused by Chlamydia psittaci. -Symptoms include fever, headache, and dry cough. -Humans acquire the disease by inhaling contaminated dust or dried droppings from infected birds (parrots, canaries, parakeets). -Tetracycline antibiotic therapy is effective.