A common virus that remains dormant in most people. It has been associated with certain cancers, including Burkitt's lymphoma, immunoblastic lymphoma, and nasopharyngeal carcinoma.
Biology Dictionary
Definition:
A virus in the family Herpesviridae which infects humans. It causes infectious mononucleosis, which is characterized by debility, fever, sore throat, enlarged lymph nodes, and an increase in white blood cell count. This virus is transmitted mainly via saliva and is associated with carcinomas of the nasal passages and throat and with Burkitt's lymphoma.
WordNet Dictionary