IBD can lay dormant in boids for up to 2 years. So a 2 year QT period would be the only safe way in that case. But yeah, 6 month QT is pretty standard now a days. . .
The food question came up, but Aubrey hadn't responded as of yet, neither had his brother Sampson. Seems to be that both of their collections were effected by this, shame too, I know Sampson was just getting started again, and had a lot of new snakes and was moving out a lot of snakes as well. . . I hope this gets isolated quick.
From the words of the diseased - Hold off buying new pythons at the moment until this thing is cornered. . . people are selling infected snakes knowingly.