Studies on the presence of viral antibodies in patients with various forms of malignant neoplasia.

The study of viral antibodies in 6714 sera demonstrated that the level of antibodies to infectious viruses was the same in cancer patients as in controls. However, the patients with various forms of neoplasia showed a considerable percentage and high antibody levels to viruses with oncogenic potential for animals (adenovirus, SV40, Rous virus) or involved in human carcinogenesis (herpes virus).