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Comparison of cytokine production by PBMCs infected with T. gondii RH, RHΔrop16, and RHΔrop18 in culture supernatants at 24 h. OT (A), Asym (B), and Neg (C). *p < 0.05, **p < 0.01; Wilcoxon signed-rank test. Lines are representative of each individual. OT, Ocular toxoplasmosis; Asym, Chronic asymptomatic infection; Neg, T. gondii seronegative individuals.
