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Sexually Transmitted Infection Risk Awareness Chart

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This chart assesses the risk for the transmission of sexually transmitted infections (STIs) when condoms or barriers are not used. Using condoms for anal and vaginal sex and condoms and dental dams for oral sex reduce but do not completely eliminate the risk of contracting an STI.
Chart Key:
  • High Risk = HR
  • Some Risk = SR
  • Theoretical Risk* = TR
  • No Risk = NR

*Note: Theoretical risk means that in theory a person could contract a given STI through a particular activity but no one has been reported as contracting the STI through that activity. Theoretical risk activities are considered low risk.

 

STI

 

 

Anal Sex

 

Vaginal Sex

 

Giving

Oral Sex

 

Getting Oral Sex

 

Deep (French)

Kissing

 

Mutual Masturbation

(without exchanging

body fluids)

 

Hugging,

dry kissing, massage, self masturbation

HIV/AIDS

HR

HR

SR (but low)

TR

TR

NR

NR

Chlamydia

SR

HR

SR

NR

NR

NR

NR

Genital warts

HR

HR

SR (but low)

SR (but low)

 

SR

NR

Herpes

HR

HR

HR

HR

SR

SR

NR (except for kissing if you come into contact with infected area)

Gonorrhea

HR

HR

HR

SR

SR

NR

NR

Syphilis

HR

HR

HR

SR

SR

NR

NR

Hepatitis B

HR

HR

HR

HR

SR

NR

NR

Vaginitis (yeast infection, bacterial vaginosis, trichomoniasis

N/A

HR

N/A

NR

N/A

NR

NR

Mucopurulent cervicitis (refers to women only)

N/A

HR

N/A

NR

N/A

NR

NR

Non-Gonococcal Urethritis (refers to men only)

HR

HR

N/A

NR

N/A

NR

NR

Lice and Scabies

HR

HR

SR

SR

NR

SR

NR (Except for massage)




The information contained in this chart was adapted from the Public Health Agency of Canada's "STI- Sexually Transmitted Infections" pamphlet;, the Canadian AIDS Society website, and the City of Ottawa "STI Risk Awareness Chart"





Updated June 4, 2010

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