Tootfinder

Good article summarizing a lot of things relevant to continued COVID'19 caution:
https://www.cbc.ca/radio/quirks/beyond-long-covid-1.7485888
Key points:
COVID'19 weakens the immune system:
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So it's not just about infecting you and causing respiratory illness and fever and all of the things that we usually get with the viral infection. This virus also specifically causes your immune system to become weaker.
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It damages blood vessels:
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In addition to SARS-CoV-2's ability to dysregulate the immune system and suppress the immune system, the spike protein itself is very damaging to blood vessel structures as well as red blood cells and platelets themselves.
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The folk idea that infections make our immune system stronger and stronger like a muscle just isn't true (or at least, doesn't apply to COVID'19 because of how, unlike most other viruses, it damages the immune system):
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For the longest time in the field of immunology, there was the sort of adage that your immune system needs to be tested every now and again to stay strong. That's an old-fashioned idea.
The more new-fashioned and evidence-based idea is that, although your immune system can take on [a COVID] infection, you want to avoid testing it as much as possible because your body is sustaining damage with each infection that it survives.
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