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A comment on S.Africa says vaccines, prior infection help mildness of Covid cases. Parent comment

Re:S.Africa says vaccines, prior infection help mildness of ... by landemva on Monday December 20, 2021 @03:05AM (#29622448)
It will be interesting to see if this data is collected, '... having had a previous infection and recovered'. And then did not vax.

It is the control group of the natural circumstance.

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