Quote Originally Posted by Buffalobiian
I'm still not entirely sure of what Sheryl's disease state is like. Can she be cured? The thesis was about management and prevention, while we're not sure if that technology is entirely confined to Galaxy or not. Mind you, it doesn't mention cure, but seeing Sheryl's really tight dress and well-developed chest in the OP is promising.
Fixed it for you

It seemed to me that a V-type infection was something like Lyme Disease or Chickpox (but obviously a lot worse than both, fever the entire time). Something that you can never truly get out of your system but isn't contagious by normal means. Something she contracted from living in the gutters.

For whatever reason, the Nome family, Grace, and what looked like Ranka's mother were involved in treating the disease through research. They had made some progress, but only got as far as supressing the symptoms. They in essence made something like the AIDS cocktail. But after that, they didn't make any progress and Grace went off on whatever plan this is.

If Klan was right, they made huge progress, and it's possible to cure her, just not with the technology they have today.