Table 2.

Serum antibody titers in S. typhimurium-vaccinated micea

VaccineIgG1 titerIgG2A titer
PreinfectionPostinfectionPreinfectionPostinfection
phoPc 0000.8 ± 1
phoPctac-ureAB 01.9 ± 1.403.4 ± 0.1
phoPccT7-ureAB 4.4 ± 0.24.7 ± 04.2 ± 0.15 ± 0
  • a Antibody titers were estimated by end point dilutions as described in Materials and Methods.