Corpse Girl has no vitals, eats only meat, isn’t contagious

“Madelyn doesn’t have low vital signs. She has none. Zero. She’s … she’s a corpse.”
“A corpse which speaks, thinks, and only eats meat,” said Stealth.
“She eats meat,” agreed the doctor, “but she’s shown complete control of herself at all times. It’s just a regular appetite.”
…
“You’re sure she’s not contagious?”
“I can’t find a single infectious organism in her,” said Connolly. “I even did a few mouth swabs just to check for basic bacteria. Nothing.”

Excerpt From Ex-Communication, pg 269-270
Peter Clines
https://books.apple.com/us/book/ex-communication/id635706546