Thöne K, et al. – An interrupted time series analysis was performed to assess vaccination herd immunity effects for anogenital warts in a low coverage setting with human papillomavirus vaccine. Authors identified a relative reduction of up to 50% among males of approximately similar age groups as that of females receiving the human papillomavirus (HPV) vaccination, this suggested herd protection resulting from assortative mixing by age. The early decrease among males can be reduced over time due to partner change.