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Table 4 Relationships between serum antibody titers and the number of days with oocyst excretion. Relationships are given as Spearman’s rank correlation coefficient ρ (in parentheses: P-values). Excretion days were correlated with IFAT results of all study days and with the titer development over time (study days 1 to 22 and 29, respectively). Significant correlations (P ≤ 0.05) are indicated in bold

From: Antibody and cytokine response to Cystoisospora suis infections in immune-competent young pigs

Study day Merozoites Sporozoites
IgG IgA IgG IgA
1 -0.176 (0.221) -0.221 (0.123) -0.009 (0.952) 0.121 (0.404)
8 0.108 (0.454) -0.054 (0.711) 0.039 (0.787) 0.128 (0.375)
15 0.385 (0.006) 0.326 (0.021) 0.256 (0.072) 0.182 (0.206)
22 0.241 (0.091) 0.306 (0.031) 0.261 (0.068) 0.266 (0.062)
29 0.167 (0.247) 0.315 (0.026) 0.333 (0.018) 0.353 (0.012)
1–22 0.405 (0.004) 0.416 (0.003) 0.215 (0.138) 0.253 (0.079)
1–29 0.311 (0.030) 0.448 (0.001) 0.293 (0.041) 0.370 (0.009)