As far as I understand, the blood test is know about
here (listed on Melissa Kaplan's anapsid.org website) but
I've been told it is not really accurate and cannot be
used as a sole way to check.. only thru liver biopsy, necropsy.
If there is a diff. blood test in the UK, please, pass it on...
let Dr. Jacobson in Florida, one of the leading people doing
research here in the US on IBD..
Melissa Kaplan's IBD page, with blood test info
Dr Jacobson's IBD page