The cottontail rabbit papillomavirus (CRPV)/rabbit model has proved useful for the investigation of prophylactic and therapeutic vaccines and for the study of the pathogenesis of papillomavirus infection. It is currently the only animal model in which the entire viral program can be recapitulated, including progression to cancer. CRPV DNA is infectious in domestic rabbits and therefore mutants can be studied without the need to generate corresponding viruses. Although the CRPV animal model is used widely in various laboratories, no optimized or standardized method is used for creating CRPV viral and especially DNA infections. These different methods have made it difficult for investigators to compare results from laboratory to laboratory. A simple and highly efficient method is reported here; it has been refined based on previous methodology for the production of CRPV infections from both virus and plasmid DNA. This method can be adapted easily by other investigators in the field. The resulting standardization will aid in the evaluation of data from different laboratories.
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