Spilled host cell products include molecules that stimulate host cell sensory nerve endings. Viral nucleic acid is incorporated into the host cell genetic code. Chromosomal damage - membrane permeability alteration, alteration of host cell translation and transduction as a result of lysogeny. Virus components are also seen as blurred cellular inclusion bodies in liver cells infected with virus during infectious viral hepatitis. Cancer Oncogene transmission or stimulation.
Some viruses carry genes that code for uncontrolled host cell replication, that is tumors.
When the virus enters lysogeny, the oncogene may become transcribed by host cells, leading to tumors. Alternatively, a virus may activate inherent oncogenes already part of the host cell, triggering tumors. The Rous sarcoma virus is know to infect mice and cause adenocarcinomas such as breast cancer. Burkitt's lymphoma is caused by the Epstein-Barr virus. Very little is known about prions.