Table 2.

Virulence properties of fimbrial mutants of S. typhimurium when administered orally to BALB/c mice

StrainRelevant genotypei.g.a LD50Fold attenuationRefer- ence
AJB3Wild type5.8 × 105 1.0 4
AJB4Δfim 1.5 × 105 0.3 4
AJB5 lpfC 2.8 × 106 4.8This study
AJB9 pefC 1.4 × 106 2.4 3
AWM394 agfB 1.9 × 106 3.3This study
AJB12Δfim lpfC pefC 1.7 × 105 0.3This study
AWM400 lpfC pefC agfB 1.7 × 107 >29This study
AWM401Δfim lpfC pefC agfB 1.5 × 107 26.4This study
  • a i.g., intragastric.