Playing God.
And to think some still wonder why the Tower of Babel was destroyed....
Mark my words: THIS kind of thing will result in the extinction of humans. The vaccines are just one part of it.
This monkeying around with things like the human immune system and the formation of a human that have taken vast amounts of time over ages to to reach a level of protection in the immune system and sophistication in the process of creating a new human, and we go in with a claw hammer and a rusty screwdriver because we are so damned smart.
Madness.
Madness.