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Table 2 Percentage of Salmonella -positive samples after enrichment

From: Prevention of egg contamination by Salmonella Enteritidis after oral vaccination of laying hens with Salmonella Enteritidis ΔtolC and ΔacrABacrEFmdtABC mutants

  Control ΔtolC ΔacrABacrEFmdtABC
Uterus 13.3 10 15.9
Spleen 80 50* 63.2
Caecum 30 6.6* 0*
Ovary 70 36.6* 31.6*
Oviduct 46.6 30 5.3*
  1. Samples of uterus, spleen, caecum, ovary and oviduct were taken, 3 weeks post-infection with Salmonella Enteritidis S1400/94. Animals were vaccinated at day 1, week 6 and week 16 with either Salmonella Enteritidis 147 ΔtolC or Salmonella Enteritidis 147 ΔacrABacrEFmdtABC. Statistically significant differences (p < 0.05) in percentage of positive organ samples between vaccinated groups and the non-vaccinated control group are indicated with an asterisk.