Sexually-transmitted infections (STIs), also known as sexually-transmitted diseases (STDs), are diseases that are commonly transmitted between partners through some form of sexual activity, most commonly vaginal intercourse, oral sex, or anal sex. They were commonly known as venereal diseases (VD) until some time around 1990, when public health officials introduced the new term in an effort to improve the clarity of their warnings to the public.

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Sexually transmitted diseases (STDs)— also known as sexually transmissible ...
Wikipedia - [full article]

Resources

  • Chlamydia (National Institute of Allergy and Infectious Diseases)
  • Genital Herpes (National Institute of Allergy and Infectious Diseases)