Virgin teens have the same STD rate as normal teens. Hilarious.
Here's a nice Guardian article that's related.
"...Sweden, for example, radically changed its sex education policies in 1975. "Recommendations of abstinence and sex only within marriage were dropped, contraceptive education was made explicit, and a nationwide network of youth clinics was established specifically to provide confidential contraceptive advice and free contraceptives ... Over the next two decades, Sweden saw its teenage birth rate fall by 80 per cent." Sexually transmitted diseases, in contrast to the rising rates in the UK and the US, declined by 40% in the 1990s".