Research Article

Resistance to Chronic Toxoplasma gondii Infection Induced by a DNA Vaccine Expressing GRA16

Table 4

Tissue cyst loadings in the brains of mice after oral challenge with 10 cysts of the Toxoplasma gondii PRU strain.

GroupsNumber of brain cysts (means ± SD)

Blank control3366.67 ± 115.47
PBS3463.33 ± 109.70
pVAX I3150.00 ± 129.41
pVAX-GRA16

significant difference ().