[Well, that's one way to explain it. Blunt and effective! Even if Rita's going to take some time to really process this, for now, she's just going to kind of stare in shock at Natsuno.]

A...what? How does...

[Look, biology isn't anywhere near her specialty, but she's pretty sure diseases don't normally work like this?!]

How does getting sick change someone that much? That means you didn't have those regenerative powers before, right? What the hell kind of disease was that?