oncovirus

English Wikipedia has an article on:

oncovirus

Wikipedia

From onco- +‎ virus.

• (UK) IPA^(key): /ˈɒŋkəʊvʌɪɹəs/

oncovirus (plural oncoviruses)

1. A virus that can cause cancer.
   • 1999, Matt Ridley, Genome, Harper Perennial, published 2004, page 234:

     Human oncoviruses soon followed and it became apparent that whole classes of cancer, such as cervical cancer, were indeed caused partly by viral infection.

• oncoviral