TABLE 2.

Recovery of S. enterica serotypes Dublin, Choleraesuis, Gallinarum, and Abortusovis from selected systemic and enteric sites up to 7 days after oral inoculation of calves^a

Tissue or material	Bacterial recovery (log10 CFU/ml ± SEM)
	SD3246	SCSA50	SG9	SAO44
Blood	0	0	0	0
Liver	3.02 ± 0.21	2.31 ± 0.55	0	0
HLN	2.62 ± 0.23	2.89 ± 1.11	0	0
Lung	3.48 ± 0.24	3.15 ± 0.34	0	0
MDLN	2.42 ± 0.19	2.01 ± 0.48	0	0
Spleen	2.94 ± 0.22	E (3/6)	0	0
Intestinal contents
Ileum	2.18 ± 1.13	4.94 ± 0.85	0	0
Cecum	4.35 ± 0.99	5.23 ± 0.64	0	0
Colon	3.63 ± 1.38	5.37 ± 0.69	0	0
Intestinal mucosa
Ileum	4.47 ± 0.69	5.80 ± 0.72	E (1/3)	E (1/3)
Cecum	5.05 ± 0.32	5.54 ± 0.62	E (2/3)	E (2/3)
Colon	4.54 ± 0.38	4.79 ± 1.12	E (2/3)	0
Mesenteric lymph     nodes
Ileum	4.30 ± 0.41	4.75 ± 1.07	E (1/3)	E (1/3)
Cecum	4.67 ± 0.21	5.40 ± 0.63	E (3/3)	E (2/3)
Colon	4.12 ± 0.31	4.85 ± 1.05	2.43 ± 0.43	E (1/3)

^aTriplicate samples were taken from each tissue or material, and means were calculated to give a value per animal. Each figure represents the mean of six calves each for serotypes Dublin (SD3246) and Choleraesuis (SCSA50) and three calves each for serotypes Gallinarum (SG9) and Abortusovis (SAO44) with the SEM. The limit of accurate quantification was 2.0 log₁₀ CFU/g, and samples that contained salmonellae in numbers too low to quantify are indicated by E (positive on enrichment culture) with the number of positive tissues/number of calves used in parentheses. HLN, hepatic lymph node; MDLN, mediastinal lymph node.