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. 2009 Jun 1:4:8.
doi: 10.1186/1750-9378-4-8.

Classification of weakly carcinogenic human papillomavirus types: addressing the limits of epidemiology at the borderline

Mark Schiffman  1 , Gary Clifford, Franco M Buonaguro
Affiliations

Classification of weakly carcinogenic human papillomavirus types: addressing the limits of epidemiology at the borderline

Mark Schiffman et al. Infect Agent Cancer. .

Abstract

Virtually all cases of cervical cancer are caused by persistent infections with a restricted set of human papillomaviruses (HPV). Some HPV types, like HPV16 and HPV18, are clear and powerful carcinogens. However, the categorization of the most weakly carcinogenic HPV types is extremely challenging. The decisions are important for screening test and vaccine development. This article describes for open discussion an approach recently taken by a World Health Organization International Agency for Research on Cancer (IARC) Monographs Working Group to re-assess the carcinogenicity of different HPV types.

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Figures

Figure 1
Figure 1
Phylogenetic analysis of anogenital HPV types [6]. Branches determined by 100 bootstrap estimations using each of the methods in the following order: Bayesian credibility value, parsimony bootstrap percentage based on nucleotide alignment, and parsimony bootstrap percentage based on amino acid alignment. All definitely, probably, and possibly carcinogenic HPV types belong to one phylogenetic clade of the alpha genus.
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