It’s like if there was a hostile that killed us all and then a rockslide fell on us and buried us and then a couple of thousand corporate or Preservation standard years went by and then aliens showed up and dug us up, and they, I don’t know, touched the human food, or pulled apart the shuttle’s power source, and stuck their hands or fungus-tentacles or whatever in it, it might poison them. It might just kill them, it might make them very sick, it might affect their neural tissue, or do weird things to their cells and cause their bodies to change, or all of those things.