Vampires, the servants of the dark lord or closely connected in some way. Their hunger for blood makes them a danger for such mortals. God has made it so that holy artifact and silver would have harmed the dark lord himself, this action was not, as the effects barely harmed the dark lord. But, it had made the dark creatures vulnerable to mortality. And thus evil was held back for centuries and eons.
While in good intentions, that being crystal desire to protect others, no one could have guessed that the machine ment to create super soldiers was actually a device to create vampires.
She will have to fight against her blood lusting instincts to ensure that the robots won’t kill the kid that would become the leader that keeps the people safe.