CPB1 and infection: Two months post infection we observed significantly lower level of parasite load in liver and spleen of hamsters immunized with DNA-A2-CPA-CPB-CTE-cSLN (prime) and DNA-A2-CPA-CPB-CTE via electroporation (boost) (G1) and Live L. tarentolae-A2-CPA-CPB-CTE (prime and boost) (G2) compared with control group G3 (Fig. 2A and B).