Re:London may have gone into a Covid-accelerated decline
by babesh on Monday May 25, 2020 @07:00PM
(#23305786)
https://en.wikipedia.org/wiki/Oncovirus
"The World Health Organization's International Agency for Research on Cancer estimated that in 2002, infection caused 17.8% of human cancers"
See https://en.wikipedia.org/wiki/Human_papillomavirus_infection
Also there are other viruses that also cause cancer
See https://en.wikipedia.org/wiki/Virus#Cancer
So you very well could have a cancer patient coughing on you and giving you cancer but the underlying cause is the virus that they have (that caused their cancer) rather than the cancer itself. So you have chaining of cancer (albeit via a virus).