During the Black Plague, a lot of people died, some got sick and survived and some didn't get sick at all. Modern science has proven that was completely due to genetics, specifically the delta 32 gene. If you had a single copy of the delta 32 gene you would get sick but likely survive. With a double copy of this gene, you wouldn't get sick at all. What does that have to do with today. Those individuals that have a double copy of the delta 32 gene are immune to the AIDS virus. I would bet they are also immune to Covid 19.
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