This has been done a lot. The blood plasma of peiple who have recently overcome an infection will be high in immunoglobulin antibodies for the pathogen. When given to people who have been exposed it may protect them from getting sick.
Wow. That reads like a vision from "Satan's frequency". God has a much better plan.
This does seem to be the year of the boomerang and the backfire. I wonder if Erdogan will be around for the return of Constantinople to Christians. Maybe some Greeks will want to visit an old church called the Hagia Sofia.
No kidding a few years ago I had the idea that a plague would sweep Europe but only kill "invaders".