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Table 3 SG-antigen-specific immune responses after prime -boost immunization in experiment 2

From: Oral immunization with an attenuated Salmonella Gallinarum mutant as a fowl typhoid vaccine with a live adjuvant strain secreting the B subunit of Escherichia coliheat-labile enterotoxin

Group n LPA Plasma IgG (μg/ml) Intestinal sIgA (μg/ml)
3 wppi 3 wpbi 0 wppi 3 wppi 8 wppi 3 wpbi 0 wppi 3 wppi 8 wppi 3 wpbi
I 5 2.6±1.0* 2.4±0.7* 73.8±32.9 182.9±9.9** 138.5±12.2** 174.6±29.5** 4.3±0.6 9.3±0.8* 5.5±0.7 8.9±1.3*
II 5 2.1±0.2* 2.3±0.3* 75.7±43.9 171.7±23.2** 132.2±5.2** 177.8±14.0** 4.0±0.2 5.5±0.3 5.7±0.3 6.5±0.6
III 5 1.2±0.4 1.1±0.1 41.4±11.5 40.1±18.3 30.5±12.1 36.5±17.7 4.5±0.6 4.8±0.2 4.3±0.1 4.6±0.4
  1. Group I chickens were primed and boosted with a JOL916-JOL1229 mixture, group II chickens were primed and boosted with SG9R, and group III chickens were inoculated with PBS as a control. LPA, lymphocyte proliferation assay. wppi, week post-prime-immunization. wpbi, week post-boost-immunization. Values represent stimulation index mean ± SEM. Asterisks indicate a significant difference compared to the control group (*p < 0.05, **p < 0.01). n, numbers of the chickens used.