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 Originally Posted by CoccoBill
Nothing says that the next variants will be less deadly, just that being less deadly would be a good idea for the virus.
This is true, but with the caveat that if it manages to spread before it kills the host, it's done its job.
I think transmissiblity is the main driver here. I mean obviously if you catch a virus and die in an hour it's not going to spread very well, so it can't be THAT deadly. But if you're coughing and spluttering for a while before you die, that's plenty of time for it to spread.
Spanish 'flu Mach 2 killed a relatively high proportion of people, and relatively quickly (within a couple of days iirc). So being deadly or not isn't the main driver of a virus' ability to multiply through a population.
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