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. 2003 May;77(9):5209–5217. doi: 10.1128/JVI.77.9.5209-5217.2003

FIG. 3.

FIG. 3.

IgG responses in serum to serovar Typhi LPS and TT fragment C in cotton rats immunized i.n. with CVD 908-htrA(pTETlpp) and CVD 1208(pTETlpp). Cotton rats received one dose of 2.2 × 108 to 2.2 × 109 CFU of CVD 908-htrA(pTETlpp) or 7.4 × 107 to 7.4 × 108 of CVD 1208(pTETlpp). Titers of antibody to serovar Typhi, S. flexneri 2a LPS, and TT fragment C were measured by ELISA in serum samples collected 21 days after immunization. GM titers ± the SE from four animals are shown. ✽, Significant increases (P < 0.05) in antibody titers after immunization compared to preimmunization levels and control group. EU, ELISA unit(s).