A multidisciplinary volume presenting recent research relating to papillomaviruses and their association with certain types of malignant lesions. Presents up-to-date findings on their classification and their molecular biology and cell-virus interactions, including mode of entry, modification of genetic material and pathogenecity; their relationship to various kinds of skin conditions; their association with cervical carcinoma and carcinomas of the bladder and alimenatry tract, with descriptions of in vitro studies; and finally, their immunology and possible therapeutic agents, e.g., interferon and vaccination. The only comprehensive text on the subject, it brings together the work of many of the most prominent researchers in the field.