The American Academy of Pediatrics published an article in the November 2012 Pediatrics issue that looks at the issue of whether sexual behavior changes in pre-teens and teens after they have received the HPV (cervical cancer) vaccine series. The results are available here. The good news was that the study did not find any increase in sexual behaviors for pre-teens and teens after the vaccine series. I hope these results reassure those families that have been concerned that we are sending the wrong message (that we expect them to be sexually active before marriage) by vaccinating pre-teens.
And remember that the vaccine is now recommended for the boys, also.