Human Pathogenic Papillomavirus Types: An Update.- Primer-Directed Sequencing of Human Papillomavirus Types.- Evolution of Papillomaviruses.- Epidemiology of Cervical Human Papillomavirus Infections.- Functions of Human Papillomavirus Proteins.- Immortalization and Transformation of Human Cells by Human Papillomavirus.- Protein Phosphatase 2A and the Regulation of Human Papillomavirus Gene Activity.- Molecular Pathogenesis of Cancer of the Cervix and Its Causation by Specific Human Papillomavirus Types.- Epidermodysplasia Verruciformis: Immunological and Clinical Aspects.- Papillomaviruses and Cancer of the Upper Digestive and Respiratory Tracts.- In Vitro Systems for the Study and Propagation of Human Papillomaviruses.- Immune Response to Human Papillomaviruses and the Prospects for Human Papillomavirus-Specific Immunisation.- Vaccination Against Papillomavirus in Cattle.