I won't claim to be an expert on IBD, & I've certainly never had to deal with it, but at this time there is no cure, & typically euthanasia is encouraged sooner rather than later, to prevent the potential spread- simply because it's so devastating- it's not only the snake that suffers, but imagine if you had a large collection with a lot of money involved with commercial aspirations & contagion to your collection could have been prevented. I can imagine there are some "IBD positive" collections where the snakes have been exposed but are asymptomatic- some snakes, including colubrids, have been thought to be able to carry it without showing signs of illness- & understandably no one wants to euthanize their seemingly healthy pets, but I sure hope they take every precaution so it's not spread. UVC is fine for killing viruses on surfaces but not in the snakes themselves- that would kill the snakes too- that's not a cure. It's also thought that mites may be able to spread it, & I'd assume that's true until proven otherwise- which is why it's best to avoid buying snakes known to have mites. Mites are more than just inconvenient- they're disease vectors.