Fig. 5

Liver histological changes in different groups. Treatments: control (injection with saline), infected (injection with bacteria), Se-NV (vaccine injection), and Se-NV + Inf (challenge with bacteria after vaccine injection).

Liver histological changes in different groups. Treatments: control (injection with saline), infected (injection with bacteria), Se-NV (vaccine injection), and Se-NV + Inf (challenge with bacteria after vaccine injection).