Any sexual activity that might cause abrasions, cuts, or other trauma is especially risky.
Anal sex is thought to be more risky than vaginal sex. And both forms of sex are more risky than oral sex. Oral-anal contact is also risky. To minimize the risk of viral transmission, experts say that any sexually active person not in a mutually monogamous relationship should take precautions, such as using condoms and getting vaccinated against hepatitis A and B. There is no vaccine for hepatitis C.
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