Less than half of all adults 18 to 44 years of age in the United States have been tested for a sexually transmitted disease other than HIV. However, an estimated 15 million people world wide become infected with one or more sexually transmitted diseases (STD) each year. In the U.S. alone, more than 65 million people are currently living with an STD and roughly half of them have contracted an incurable lifelong STD such as herpes.

Most sexually transmitted diseases fall into one of two categories