don't believe everything you read about IBD... it's very rare, even in boas. seriously. most of the stuff on the net is hype and a lot of it is people speculating about inclusion bodies being the cause of whatever neurological symptoms their snake exhibits. the truth is, pythons and boas are sensitive animals all things considered... encephylitis could be brought on by a variety of things. it's the less than qualified 'exotic vets' that tend to point to IBD when a snake goes downhill healthwise...when in reality, most of them don't even own the electron microscopes that would be necessary to detect IBD.