TABLE 6.
Recovery of bacteria from the liver and cecum of chicks infected with fepA, iroN, and cir mutants of S. enterica serovar Enteritidis strain SE147Nalr
| Inoculum strain (genotype) | Challenge dose (CFU/bird)a | Recovery of bacteria (log10 CFU/ml)b from:
|
|
|---|---|---|---|
| Cecum | Liver | ||
| SE147Nalr | 2.5 × 103 | 9.36 | 4.08 |
| WR1425 (fepA) | 1.74 × 103 | 9.44 | 3.88 |
| WR1434 (fepA iroN) | 2.5 × 103 | 9.02 | 3.86 |
a
Groups of four birds were inoculated with each strain at the doses indicated.
b
Standard errors for counts were ±0.24 for the cecum and ±0.14 for the liver.