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. 2020 May 19;11:935. doi: 10.3389/fimmu.2020.00935

Figure 3.

Figure 3

Specific IgG response in vaccinated birds post-challenge infection. Broilers were vaccinated as described in Fig legend 1, challenged at age 5-week, 10 days later euthanized and serum samples collected were analyzed for specific IgG antibody response by ELISA: against (A) FLA protein (I and II), (B) OMP (I and II), and (C) KAg (I and II). Data were presented as mean ± SEM of 6 or 5 birds. Significant difference between the indicated two groups were determined by one-way ANOVA followed by Tukey post-hoc test. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001.