Yes, you should always QT a new animal. There are a lot of great threads on here explaining how to do so. That said, people throw around IBD a lot. It's a horrible disease and will destroy a collection. But it just isn't that common.
Also, your new ball's whistling was probably due to stress. But good job on bumping the temps. Watch your ball for anything that doesn't look right, and please come here to ask if you see something that concerns you.
the "whistling" is probably just hard breathing??
1.0 Wandering Garter
0.1 Wandering Garter (she is preggo)
0.1 BCI Sunglow
1.0 BCI double het for sunglow
1.0 Colombian Red Tail
1.0 Bumblebee
0.1 Normal
0.1 Pastel (amazing colors)
0.0.1 Kenyan sand boa
1.0 African fat tailed gecko (striped tangerine albino)
RIP 4/23/13 1.0 African fat tailed gecko (albino)
Tons of rats some are pets most are feeders ~The extinction of the humans will come from only the humans themselves~