Figure 1From: Multiple human papillomavirus infections are highly prevalent in the anal canal of human immunodeficiency virus-positive men who have sex with men European variants of HPV-16 are highly prevalent among HIV+ MSM. A total of 39 clinical samples, were sequenced across the E6 (nt 104–559) and LCR (nt 7480–7843) regions to determine variant and intra-variant types. Variants and intra-variants were classified according to Yamada et al. [23].Back to article page