![](https://v2.anonup.com/upload/avatars/2021/01/3z1tBk6IgFvy5ArcbxbY_11_9990794823d33e01bdf7b79dadc44ccb_thumbnail_512x512.jpeg)
Thinking out loud...
Could covid and 23andMe testing be used to identifiy people with specific genetic markers?
Could a vaccine be developed that targets people with specific genetic markers?
Or those with the "Cain" genetic marker...
https://cainbloodline.blogspot.com/