by Elmer on October 11, 2021 2:11 pm
I remember listening to podcast last year in which a doctor was speculating that it would probably be possible to catch Covid-19 more than once, but that each follow-up illness would be less severe than the previous one.
Your example of a person having a mild case earlier this year then dying from a more severe case this summer would probably contradict that thesis. Unless... the first case was one variant, and the second case was Delta.
I don't mean to quibble over details, but I raise this as a reminder -- the virus can mute again, and future variants could cause more severe illness than the others.
The best way to keep the virus from mutating is to create herd immunity -- as quickly as possible, worldwide. And I would think it's faster and more effective to do that through vaccination.
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There are other reasons but I thought I would present this one from the NIH first. 
