Data on the involvement of some viruses in the etiopathogeny of human tumors.

Literature data concerning the relationship between some viruses (adenoviruses, herpes viruses, C-type oncornaviruses, papova viruses) and human cancer are briefly reviewed. Mention is made of the contribution to this domain of the Romanian school of virology and some of the author's viewpoints on the role of viruses in carcinogenesis are presented.