Corpse Girl doesn’t decay like Exes

“The ex-virus does slow decay significantly,” said Stealth.
“It does,” agreed Connolly, “but it doesn’t stop it. And it doesn’t do anything to halt rigor mortis, evaporation, or basic wear and tear. I would’ve said she’s been dead for a month at most. And a pretty gentle month.”

Excerpt From Ex-Communication, pg 168
Peter Clines
https://books.apple.com/us/book/ex-communication/id635706546