Generally the main sticking point with people who have had or are undergoing cancer treatments is what immunosuppressant treatments they might be on, and even then most doctors are advising patients to get vaccinated, even if they are ACTIVELY being treated for cancer. Reading WAY into it, but that really sounds like, "hey, you should get this vaccine"...."naaaaaaaaaah, pass!" Dude pretty obviously opted not to on his own. That answers my question, thank you. Sucks to suck, tinyface.