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 common symptoms, and how they can be treated- is the first step toward prevention. …
