Symptoms usually appear within a week of infection. Chlamydia Chlamydia is a very common and invisible sexually transmitted infection that can cause sterility in women and men. Reiter's syndrome involves eye infections, urethritis and arthritis. In infants, chlamydia can cause pneumonia, eye infections and blindness. Seventy-five percent of women and 25 percent of men with chlamydia have no symptoms.
Many women discover they have chlamydia only because their partners are found to be infected.
Other women discover that they have it when they are treated for infertility. It is also sexually transmitted. Every year, CMV causes permanent disability, including hearing loss and mental retardation, in 4,000 to 7,000 babies. CMV is also very dangerous for people with weakened immune systems. It can cause blindness and mental disorders.