Fig. 6: Immunoprotective analyses by measuring bacterial loads and inflammatory response levels of organs.

Measured the bacterial loads and levels of inflammatory response in organs of each group (n = 3) challenged with 3 × 108 CFU/mouse of two strains. a, b Alive bacterial loads for tissues from different groups of challenged mice. c, d Cytokine transcription levels in Brain of mice from different groups. The gapdh was used as internal reference. Significance (P)-value summary analysed by Unpaired two-tailed Student’s t-test (*P < 0.05; **P < 0.01; ***P < 0.001; ns, no significance).