Keep in mind that receptive anal sex carries a risk of infection 18 times higher than that of receptive vaginal sex. Moreover, receptive vaginal sex is twice as

Keep in mind that receptive anal sex carries a risk of infection 18 times higher than that of receptive vaginal sex. Moreover, receptive vaginal sex is twice as likely to result in infection as insertive vaginal sex. http://www.catie.ca/en/pif/summer-2012/putting-number-it-risk-exposure-hiv http://www.catie.ca/en/pif/summer-2012/putting-number-it-ris...