TABLE 5.

G. lamblia infections in cytokine-deficient mice

Expt	Mice	Day 7		Day 14		Day 28
		Infecteda	Intensityb	Infected	Intensity	Infected	Intensity
1	C57BL/6J	2/3	4.2 ± 3.8	0/3	NDe	0/3	ND
	B6 IL-4	3/3	1.7 ± 1.2	0/3	ND	0/3	ND
	B6 IFN-γ	3/3	11.7 ± 7.3	2/3c	2.0 ± 2.6	0/3	ND
2	C57BL/6J	3/3	3.5 ± 1.0	0/3	ND	0/3	ND
	B6 IL-4	3/3	3.5 ± 1.8	0/3	ND	0/3	ND
	B6 IFN-γ	2/3	4.2 ± 4.2	0/3	ND	0/3	ND
3	BALB/cJ	4/6	3.5 ± 1.0	0/6	ND	0/6	ND
	BA IL-4	2/3	3.5 ± 1.0	0/3	ND	0/2	ND
	BA IL-4R	3/4	3.5 ± 1.0	0/3	ND	0/2	ND
	BA STAT-6	0/3d	ND	0/3	ND	0/3	ND

^aThe number of mice with detectable parasites in the gut/total number of mice analyzed on the day indicated postinfection. 

^bThe average ± standard deviation of the number of parasites/mouse × 10⁴. 

^cP = 0.16 versus the value for C57BL/6J mice. 

^dP = 0.15 versus the value for BALB/c mice. 

^eND, none detected.