Table 3. In vitro activity of sera obtained from blood and homogenates of liver and spleen of mice treated for Salmonella enterica 74.

Group	Treatment	CFU/mlb
		Sera		Homogenate
		Heart blood	Liver	Spleen
Control	0.1 ml of a sterile saline	1.8×108 to 5.9×108	6.5×108 to 9.2×108	1.6×108 to 8.7×108
I	200 µg of Racemic form	9.0×104 to 6.6×105	2.8×103 to 3.8×104	2.5×103 to 4.8×104
II	200 µg of (+) form	3.6×104 to 9.6×105	2.2×104 to 5.0×105	7.8×103 to 2.8×105
III	200 µg of (−) form	1.0×103 to 8.0×105	2.0×103 to 4.7×104	1.8×103 to 5.7×104

^aMice received a challenge of 0.95×10⁹ colony-forming units of S. enterica NCTC 74 in 0.5 ml of brain-heart infusion medium.

^*p<0.001 vs. controls (‘t’ test).