Specific IgA antibodies to Toxoplasma gondii detected by ELISA in BALB/c mice sera collected 30 days after challenge.

* significant difference between the Cy-immunosuppressed group compared to respective non-immunosuppressed group primary infected and challenged with the same strains of T. gondii, p < 0.05.

Experimental groups: group 1 (D8+CH3) × group 2 (D8+CH3/Cy): mice primary infected with the D8 strain and challenged with the CH3 strain; group 3 (D8+EGS) × group 4 (D8+EGS/Cy): mice primary infected with the D8 strain and challenged with the EGS strain; group 10 (ME49+CH3) × group 11 (ME49+CH3/Cy): mice primary infected with the ME49 strain and challenged with the CH3 strain.