Fig 3. YFTL treatment significantly alleviated inflammatory response in the lungs of infected mice.

(A-F) The expression levels of IL-1β, TNF-α, IL-6, CCL2, IL-10 and PGE2 in the supernatants of lung homogenates of mice at therr days p.i., as determined by ELISA. Data are presented as means ± SEM from two or three independent experiments. * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001, n.s., not significant.