BMJ; 346 doi: http://dx.doi.org/10.1136/bmj.f2032
Objective To measure the effect on genital warts of the national human papillomavirus vaccination programme in Australia, which started in mid-2007.
Conclusions The significant declines in the proportion of young women found to have genital warts and the absence of genital warts in vaccinated women in 2011 suggests that the human papillomavirus vaccine has a high efficacy outside of the trial setting. Large declines in diagnoses of genital warts in heterosexual men are probably due to herd immunity.
Read more here