Most at
Risk: According to the Canadian Guidelines
on Sexually Transmitted Infections
"Any patient whose current or past history falls into one or
more of these categories is considered to be most at
increased risk of STD".
sexual contact with person(s) with known STD
youth < 25 years of age with multiple partners
street involvement (e.g., homelessness)
intercourse with new partner in last 2 months
more than two sexual partners in previous 12 months
no contraception or non-barrier methods
injection drug use – injection drug users are at high risk of HIV/HBV/HCV as well as other STD
persons immigrating from or having sex in countries where certain STDs are currently epidemic, and their sexual partners
men who have sex with men
commercial sex workers, including “survival sex” (exchanging sex for money, drugs, shelter or food).
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