In fact, receptive penio-anal sex has about 17 times as high a transmission rate than receptive penio-vaginal sex, which an order of magnitude more difference t

In fact, receptive penio-anal sex has about 17 times as high a transmission rate than receptive penio-vaginal sex, which an order of magnitude more difference than what a condom can make in either. The difference a condom makes is quite comparable to being the receiver or penetrator in penio-vaginal sex, in fact.