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Table 1 Motility, DOC sensitivity and virulence of the wild-type S. Typhimurium χ3761 and its ECA-deficient mutant

From: Effect of deletion of gene cluster involved in synthesis of Enterobacterial common antigen on virulence and immunogenicity of live attenuated Salmonella vaccine when delivering heterologous Streptococcus pneumoniae antigen PspA

Strain Motility (cm) on soft agar Death rate (%) (DOC) LD50
χ3761 6.2 ± 0.1 9.5 2 × 104
χ12357 6.4 ± 0.1 87.6 > 109