If you die of the plague, does the plague you have die with you ?”
Oh, I’m sure somewhere there is a scientist who can bring it back to life, probably already has.
It probably wouldn't do them any good if they did. The people that survived were mostly resistant to these plagues and were the ones that passed their immunity on to us. Thats why up to 80% of the Native American population was wiped out upon the arrival of the Europeans. They had no genetic protection against a wide range of diseases that had become mere minor annoyances to the Europeans.