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@t-v It wouldn't surprise me.
I can't believe whatever mild symptoms I and my flatmate had were the same strain that hospitalised a fit guy in his 30's from my workshop building and killed my uncle.
Either there are different strains or there is a genetic element to who is most vulnerable (disregarding age and pre-existing conditions).
I'm lucky in that I've only had flu twice in my 40 years. Could this be related to the mild level of symptoms I got for what I assume was covid19?
Who knows..
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I can't believe whatever mild symptoms I and my flatmate had were the same strain that hospitalised a fit guy in his 30's from my workshop building and killed my uncle.
Either there are different strains or there is a genetic element to who is most vulnerable (disregarding age and pre-existing conditions).
There are thought to be two strains (L-type and S-type), but the differences are tiny and they're generally regarded as so similar that it's highly debatable whether they are really two strains at all (https://www.newscientist.com/article/2236544-coronavirus-are-there-two-strains-and-is-one-more-deadly/).
The consensus at the moment seems to be that genetic differences are why people suffer such different reactions to the virus:
https://uk.reuters.com/article/uk-health-coronavirus-britain-genetics/uk-researchers-try-to-crack-genetic-riddle-of-covid-19-idUKKBN22O3DG
I think this is definitely true. Can different strains have highly differing levels of mortality?