and the Usefulness of the HPV Vaccine for Men Who Have Sex With Men

TO THE EDITOR—We read with interest re-cent articles by Glick et al [1] and Zou et al [2], reporting a high prevalence of human papillomavirus (HPV) infection in young men who have sex with men (MSM). While HPV vaccination has been shown to be most efficacious prior to sexual debut [3], there is increasing ev-idence that HPV vaccination would re-main beneficial in sexually experienced risk groups with a high risk of HPV-associated disease complications, such as MSM [3]. We performed a prevalence study in a cohort of 194 MSM, 99 human immuno