Article
Prevalence of and risk factors for anal human papillomavirus infection in men who have sex with women: a cross-national study.
The Journal of infectious diseases - 15 May 2010
Nyitray Alan G, Smith Dan'elle, Villa Luisa, Lazcano-Ponce Eduardo, Abrahamsen Martha, Papenfuss Mary, Giuliano Anna R
Abstract excerpt
BACKGROUND: Although the primary cause of anal cancer is human papillomavirus (HPV) infection in the anal canal, little attention has been paid to the epidemiology of anal HPV infection in men who have sex with women (MSW). METHODS: Exfoliated cells from the anal canal of 902 MSW in Brazil (São Paulo), Mexico (Cuernavaca), and the United States (Tampa) were tested for HPV DNA. RESULTS: The prevalence of HPV...
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