More than 1 million people worldwide get sexually transmitted infections every day.
An estimated 357 million people are newly infected each year with one of four types of sexually transmitted infections: chlamydia, gonorrhea, syphilis and trichomoniasis.
It is estimated that more than 500 million people are infected with the genital herpes virus.
More than 290 million women are infected with human papillomavirus.
Sexually transmitted infections such as type 2 herpes simplex virus and syphilis may increase the risk of HIV infection.
In 2012, more than 900,000 pregnant women were infected with syphilis, resulting in nearly 350,000 adverse deliveries, including stillbirths.
In some cases, in addition to the direct effects of infection itself, STIs can also have serious consequences through mother-to-child transmission of infections and chronic diseases.