Influence of meq isoforms from various pathotypes on MDV pathogenesis.
(A) MDV genome copies were detected in the blood samples of chickens infected with indicated viruses by qPCR. Mean MDV genome copies per one million cells are shown for the indicated time points (p>0.05, Kruskal-Wallis test). (B) Disease incidence in chickens infected with indicated recombinant viruses and significant differences in comparison to vvMeq (** p<0.0125, Log-rank (Mantel-Cox) test). (C) Tumor incidence as percentage of animals that developed tumors during the experiment. Asterisks indicate significant differences compared to vvMeq (* p<0.05 and ** p<0.0125; Fisher’s exact test). (D) Tumor distribution is shown as the number of tumorous organs in tumor-bearing animals with standard deviations (* p<0.05 and ** p<0.0125; Fisher’s exact test).