Comment on

• Associations between male anogenital human papillomavirus infection and circumcision by anatomic site sampled and lifetime number of female sex partners.

  Nielson CM, Schiaffino MK, Dunne EF, Salemi JL, Giuliano AR. Nielson CM, et al. J Infect Dis. 2009 Jan 1;199(1):7-13. doi: 10.1086/595567. J Infect Dis. 2009. PMID: 19086813 Free PMC article.
• Effect of male circumcision on the prevalence of high-risk human papillomavirus in young men: results of a randomized controlled trial conducted in Orange Farm, South Africa.

  Auvert B, Sobngwi-Tambekou J, Cutler E, Nieuwoudt M, Lissouba P, Puren A, Taljaard D. Auvert B, et al. J Infect Dis. 2009 Jan 1;199(1):14-9. doi: 10.1086/595566. J Infect Dis. 2009. PMID: 19086814 Free PMC article. Clinical Trial.
• Male circumcision and risk of HIV infection among heterosexual African American men attending Baltimore sexually transmitted disease clinics.

  Warner L, Ghanem KG, Newman DR, Macaluso M, Sullivan PS, Erbelding EJ. Warner L, et al. J Infect Dis. 2009 Jan 1;199(1):59-65. doi: 10.1086/595569. J Infect Dis. 2009. PMID: 19086815