Fig. 5
From: In vivo antiviral effect of plant essential oils against avian infectious bronchitis virus
IL-4, IFN-γ, and IL-6 concentrations in the sera. A IL-4 concentrations. B IFN-γ concentrations. C IL-6 concentrations. Sample quantity n = 5; compared with the blank control group, the challenge control group showed ## p < 0.01; compared with the challenge control group, the prevention and drug groups (positive drug and different doses of PEO) showed *p < 0.05, ** p < 0.01. Different superscript letters indicated significant differences (p < 0.05)