Generally, viruses are infectious in nature and there are several cancer-causing viruses that are known (i.e. oncovirus)
My question is: Are these oncoviruses infectious in nature? If so, what is the way in which they can be transmitted?
(edit:just a background to connect the title and the question (as mentioned by user iayork):While reading my text(which led me to the doubt) I was considering the virus as a causal organism and the disease as cancer(malignant tumour cells).The cancer cells are non-contagious however I wanted to understand if the disease was.Thus I was interested on the routes of the transmission of the viruses.Also note (which I had already asked user Chris in the comment) "most cancer disease are non contagious but if cancer disease was due to virus if it was contagious or not"