TABLE 1.

Incidence of cecal and colon lesions in mice infected with urease-negative Helicobacter sp.^a

Strain	Route of injection	Time (mo) p.i.	No. with intestinal lesion/no. sacrificed
IL 10−/−	i.p.	1	3/3
		2	5/5
		4	7/7
	Intragastric	1	3/3
		2	1/1
A/JNCr	i.p.	1	0/2
		6	2/3b
SCID	i.p.	1	2/2
		6	2/2

^aAny mice not noted but injected either died or were used for culture only. None of the control mice had cecal or colon lesions. 

^bMinimal inflammation.