Table 5: Stimulation index (SI) in the MTT assay, after the lymphocyte culture stimulated with Toxoplasma gondi antigen in the experiment and control groups.

Groups	SI
pcSAG1+ pcROP2	1.35
pcSAG1+pcGRA5	1.33
pcROP2+pcGRA5	1.36
pcGRA5+pcSAG1+pcROP2	3.29
PBS	1.00
pcDNA3	1.09