How is this relevant? I'm not into this field. The article is only from 2013. So... | Hacker News

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_mzl1 on April 23, 2020 | parent | context | favorite | on: Adult immune systems ‘remember’ germs to which the...

How is this relevant? I'm not into this field. The article is only from 2013. So I can only relate it to Covid-19.

Thankful for any response

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