Hey peter... very late on this thread and I cannot offer enough condolences.

I have to say I concur with the thoughts surrounding IBD as being faster than that. Often larger breeders will place a hatchling male BP in with a boa before bringing it out of QT... as the python will die before the QT is up.

Sorry for the graphic and not so popular image, but many of us know that is done.

My fear though, and my caution... and I really hate even suggesting it. But the show Aug 10th in Mtl. Is there a chance you brought something home with you accidentally?

Or something intentional? Supplies, feeders, etc. that may have come into contact with this baby snake and may not have been 100% sanitized? If her immune system was already compromised it may have sped things up for her.

I am not sure if you remember a thread on R-Canada regarding an individual's snake that was accidentally poisoned by the active ingredient in Nix and displayed very similar symptons to IBD? If I remember this happened before they got the snake and the effective was cumulative and did not show up immediately.

You mentioned no mites, no treatments, so just asking... did you treat an enclosure or anything that may have possibly come into contact with her.

Just grasping here.

The other concern would be if the second snake is showing symptons of an advanced RI, then very carefully trace your QT and handling procedures within your snake room.

What tools are used on what snakes, any shared tubs, shared cleaning areas, etc.

My heart goes out to you Peter.

Bruce