Efficacy of AA against E. granulosus metacestodes in vivo. Mice were intraperitoneal injected E. granulosus metacestodes for 18 weeks, and then treated with honey/PBS, ABZ or AA orally for 6 weeks. The images (A) and weight (B) of metacestodes resected from different treatment groups. C The level of IL-4 was detected after treatment with ABZ and AA by ELISA. Asterisks indicate scores obtained using one-way ANOVA in relation to the control group. D E. granulosus metacestodes in different treatment groups were observed by SEM.