• One in four teen girls in the U.S. had a sexually transmitted infection.
  • Worldwide, a million people a day become infected with STIs.
  • Most STIs are caused by bacteria or viruses.
  • Bacterial STIs can be cured with antibiotics.
  • Viral STIs cannot be cured.
  • Most of the pathogens that cause STIs enter the body through mucous membranes of the reproductive organs.
  • All sexual behaviors that involve contact between mucous.
  • membranes put a person at risk for infection.
  • Using condoms can lower the risk of becoming infected during some types of sexual activity.
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