In a massice 2015 Lancet study of temperature related fatalities worldwide, they found 17 times more fatalities due to cold than heat. Even in tropical countries there were more people dying due to cold-related issues. https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
If the expert is right it's hardly an "opinion"; it's more a fact. But we still talk in terms of "expert opinion" because there are other experts with, sometimes, diametrically opposite views. Do we get to hear all these experts? Not a chance.
Given you are such an expert on viral disease, doesn't it make more sense for you to author a book, movie, ... to explain to your mum what she's wrong?
PS: I hope you're not one of these Wikipedia editors censoring physicists on Wikipedia because you "know" better?, or perhaps censoring virologists on Wikipedia because likewise.
PS 2: Some doctors were wrong about COVID. Some governments were very wrong. COVID lockdowns hurt the world economy worse the GFC.
I'm all for openness. Open standards for example. But 'open information' never worked; and never will. Powerful interests want to control information. They did it in Communist states. They do it in Capitalist states. They even do it on 'Anarchist' Wikipedia. That doesn't mean to say I favour closed off information. I just think people need to understand that - in opening up information and discourse - we are up against powerful interests = other people. Many of them are fithy rich and they desire to tell us what to think, read and say - because they "care" about us and "know what's best" for us.