Sexually transmitted infections can be caused by:
- Bacteria (gonorrhea, syphilis, chlamydia)
- Parasites (trichomoniasis)
- Viruses (human papillomavirus, genital herpes, HIV)
Sexual activity plays a role in spreading many other infectious agents, although it's possible to be infected without sexual contact. Examples include the hepatitis A, B and C viruses, shigella, and Giardia intestinalis.
Aug. 19, 2014
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- Sexually transmitted infections (STIs). World Health Organization. http://www.who.int/mediacentre/factsheets/fs110/en/. Accessed June 23, 2014.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=4. Accessed June 21, 2014.
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- New guidelines for cervical cancer screening: Patient education fact sheet. The American Congress of Obstetricians and Gynecologists. http://www.acog.org/Womens-Health/Cervical-Cancer. Accessed June 21, 2014.
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- Centers for Disease Control and Prevention, et al. Sexually Transmitted Diseases Treatment Guidelines, 2010. MMWR. 2010;59:1. http://www.cdc.gov/sTD/treatment/2010/default.htm. Accessed June 21, 2014.
- Partner services FAQs. Centers for Disease Control and Prevention. http://www.cdc.gov/nchhstp/partners/faq-public.html. Accessed June 23, 2014.
- Preexposure prophylaxis for the prevention of HIV infection in the United States — 2014 clinical practice guideline. Atlanta, Ga. Centers for Disease Control and Prevention. http://www.cdc.gov/hiv/pdf/guidelines/PrEPguidelines2014.pdf?elq=0a349f52dfa74f48ae554056bc0e027e&elqCampaignId=8040. Accessed May 16, 2014.