That's really interesting Marcus.
When I was visiting Norway I wondered about all the transplanted dark skinned people and how they would fair without fair skin. -Specifically Vitamin D absorption/synthesis. (low sun and high melanin don't play well, I suspect) ...Norsk are pretty much pigment free.
And here we are...
Quote:
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In one study it was found that 100% of ICU COVID-19 patients less than 75 years old had vitamin D insufficiency.
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per:
https://www.acsh.org/news/2020/05/04/vitamin-d-covid-19-evidence-so-far-14763