Sexually transmitted diseases.

Sexually transmitted infections (STIs), once called venereal diseases, are among the most common infectious diseases in the United States today. More than 20 STIs have now been identified, and they affect more than 13 million men and women in this country each year. The annual comprehensive cost of STIs in the United States is estimated to be well in excess of $10 billion. Understanding the basic facts about STIs - the ways in which they are spread, their …

…The most common symptoms of gonorrhea are a discharge from the vagina or penis and painful or difficult urination. The most common and serious complications occur in women and, as with chlamydial infection, these complications include PID, ectopic pregnancy, and infertility. Historically, penicillin has been used to treat gonorrhea, but in the last decade, four types of antibiotic resistance have emerged. New antibiotics or combinations of drugs must be used to treat these resistant strains.