I'll nitpick a littl, @bostjan - science denial doesn't cause severe covid, but it's an associated risk factor in two ways; one, science denial is an associated risk factor with fairly high predictive power for not getting the covid vaccine, and not being vaccinated makes it much more likely you'll get covid in the first place, and two, as being vaccinated not only has a huge impact on your chances of getting covid, but also a pretty huge impact on your chances of a covid infection becoming severe, science denial is also associated with fairly strong predictive power with an existing covid infection becoming severe. I think taking it a step beyond that, there's an added wrinkle here in that clearly not all science deniers are Trump supporters (though there's high correlation, I suspect), and not all Trump supporters are science deniers (ditto), but Trump supporters have been primed to see covid through a political lens and supporters that might otherwise by and large trust medical science are holding out on vaccination not because they necessarily disagree with the science (though many do), but because covid is "not that big a deal," they rthink. Admittedly, a lot of this is semantic. If supporting a candidate makes you less likely to get a vaccine, and not getting vaccinated makes you more likely to get sick, and more likely to get severely sick if you get sick in the first place, well... it's not rocket surgery what's going to happen next. The irony is that in whole swathes of the country now, these same people are overfilling emergency rooms and hospitals being kept alive on ventilators while doctors, who they don't trust enough to listen to them and get a vaccine, are trying to save their lives and in turn unable to try to save the lives of other people who need medical attewntion but there aren't enough remaining beds to take them in, so this whole thing isn't just some hypothetical logical experiment but a situation that really, really, really sucks for a ton of our countrymen who DO trust the scientific method.