TABLE 4.
Recovery of S. enterica serotypes Dublin, Choleraesuis, Gallinarum, and Abortusovis from selected systemic and enteric sites 7 days after i.v. inoculation of calvesa
| Tissue or material | Bacterial recovery (log10 CFU/ml ± SEM)
|
|||
|---|---|---|---|---|
| SD3246 | SCSA50 | SG9 | SAO44 | |
| Blood | E (1/3) | 0 | 0 | 0 |
| Liver | 3.90 ± 0.48 | E (1/3) | 0 | 0 |
| HLN | 3.37 ± 0.09 | 3.63 ± 0.07 | E (1/3) | 0 |
| Lung | 3.93 ± 0.51 | 2.57 ± 0.23 | 0 | 0 |
| MDLN | 3.05 ± 0.47 | 3.76 ± 0.21 | E (1/3) | 0 |
| Spleen | 3.84 ± 0.46 | E (2/3) | 0 | 0 |
| Intestinal contents | ||||
| Ileum | 4.24 ± 2.13 | 2.24 ± 0.24 | E (1/3) | 0 |
| Cecum | 5.21 ± 1.62 | 2.42 ± 0.42 | 0 | 0 |
| Colon | 5.16 ± 1.58 | 2.48 ± 0.48 | 0 | 0 |
| Intestinal mucosa | ||||
| Ileum | 4.45 ± 1.21 | E (2/3) | 0 | 0 |
| Cecum | 4.37 ± 1.19 | 2.50 ± 0.27 | 0 | 0 |
| Colon | 4.42 ± 1.24 | E (2/3) | 0 | 0 |
| Mesenteric lymph nodes | ||||
| Ileum | 4.13 ± 0.43 | 3.49 ± 0.25 | E (1/3) | 0 |
| Cecum | 3.85 ± 0.53 | 3.63 ± 0.24 | 0 | 0 |
| Colon | 3.67 ± 0.84 | 3.02 ± 0.51 | 0 | 0 |
a
Triplicate samples were taken from each tissue or material, and means were calculated to give a value per animal. Each figure represents the mean of three calves 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.