echinococcosis is one of the world’s relevant zoonoses, affecting both humans and their domestic animals and caused by infection with the metacestode stage of the dog tapeworm, echinococcus granulosus. in the present study, twenty mice were randomly divided into 4 groups of 5. each mouse in groups 1, 2 and 3 was immunized with 100 μg of hydatid cyst fluid protein, protoscolex and adult worms of...