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A comment on London may have gone into a Covid-accelerated decline. Parent comment

Re:London may have gone into a Covid-accelerated decline by catalogia on Saturday May 23, 2020 @10:57PM (#23288717)
> There has never been herd immunity for polio, measles, or even for chicken pox.

I think you've got a selection bias there. Those illnesses are household names because they are/were so prevalent. But what of the illnesses that never became prevalent enough to become household names because populations developed immunity fast enough to suppress the spread?

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Re:London may have gone into a Covid-accelerated decline by xyzzy_plugh on Sunday May 24, 2020 @01:03AM (#23289250)
What's the last illness that never became prevalent enough to become a household name because populations developed immunity fast enough to suppress the spread?

I can't think of any.

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