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by ethbr0 2005 days ago
It's less likely there's a genetic component to infection rates (though possible!) than a population-immunological one.

It's been experimentally verified that various pre-pandemic coronavirus antibodies are reactive against SARS-CoV-2.

It's a fact that different world populations have to deal with different endemic disease profiles.

Consequently, different populations have different pre-infection susceptibility to SARS-CoV-2. [0]

[0] https://www.ijidonline.com/article/S1201-9712(20)32310-9/ful...