TABLE 1.

Number of viable bacteria in mouse organs following infection

Time point and exptl groupa	CFU of bacteria/g of:
	Liver	Spleen
2 wk
C57BL/6J	(1.2 ± 0.3) × 108	(1.1 ± 0.3) × 108
β2−/−	(1.4 ± 0.2) × 108 (P = 0.602)b	(1.0 ± 0.1) × 108 (P = 0.833)
4 wk
C57BL/6J	(2.8 ± 0.4) × 108	(3.8 ± 0.5) × 108
β2−/−	(1.5 ± 0.3) × 108 (P = 0.060)	(3.0 ± 0.4) × 108 (P = 0.195)
6 wk
C57BL/6J	(1.6 ± 0.3) × 109	(3.6 ± 0.4) × 109
β2−/−	(1.8 ± 0.3) × 109 (P = 0.514)	(5.0 ± 0.8) × 109 (P = 0.157)
8 wk
C57BL/6J	(2.3 ± 0.3) × 109	(1.4 ± 0.1) × 1010
β2−/−	(1.3 ± 0.1) × 109 (P = 0.156)	(1.1 ± 0.1) × 1010 (P = 0.100)

^aEither 16 or 17 mice of each strain were used per time point. 

^bP values are for comparisons between mouse strains.