Table 1.

 Histological score for the SCID transfer model of colitis

Score	0	1	2	3	4	+ 0.5
Inflammatory infiltrate	None	Focal	Cirumferential mild	Cirumferential moderate	Cirumferential severe	Crypt abscesses, submucosal infiltration, mucosal haemorrhage
Mucosal architecture	Intact	Intact	Intact	Damaged	Loss