TABLE 3.

Average numbers of CFU in the spleens and livers of A/J mice challenged intravenously with the indicated doses of ATCC 14028 or CWG304^a

Dose (CFU)	Avg CFUb per:
	Spleen		Liver
	ATCC 14028	CWG304	ATCC 14028	CWG304
104	3,468 ± 3,352c	9 ± 5	142 ± 46	0
103	56 ± 13	0	32 ± 17	0
102	58 ± 9	0	31 ± 3	0

^aSurviving mice were sacrificed at 21 days postinfection. 

^bResults are averages and standard deviations from five mice, except as indicated. 

^cOnly two of five mice survived until day 21 at this dose.