Thats for infection Rates of men during heterosexual intercourse. These are already low: https://www.hivlawandpolicy.org/resources/heterosexual-risk-hiv-1-infec

Thats for infection Rates of men during heterosexual intercourse. These are already low: https://www.hivlawandpolicy.org/resources/heterosexual-risk-hiv-1-infection-sexual-act-systematic-review-and-meta-analysis https://www.hivlawandpolicy.org/resources/heterosexual-risk-... So you'd be cutting the rate from 8 in 10000 acts to 3 in 10000. its something but theres probably more efficient ways.