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Table 2 Virus quantity in serum samples detected on different DPCs

From: Anti-idiotypic antibodies reduce efficacy of the attenuated vaccine against highly pathogenic PRRSV challenge

DPCs Virus quantity from six groups of piglets1  
  1 2 3 4 5 6
0 0 (6) 0 (6) 0 (6) 0 (6) 0 (6) 0 (6)
3 7.3 ± 0.3 (6)a 7.9 ± 0.6 (6)a 5.5 ± 0.3 (6)b 5.3 ± 0.2 (6)b 5.8 ± 0.2 (6)b 0 (6)
7 8.0 ± 0.2 (6) a 8.4 ± 0.4 (6) a 6.2 ± 0.3 (6) b 6.0 ± 0.4 (6) b 7.5 ± 0.3 (6) a 0 (6)
10 7.1 ± 0.2 (6)a 7.5 ± 0.3 (6)a 6.0 ± 0.4 (6)b 5.8 ± 0.4 (6)b 8.2 ± 0.2 (6)a 0 (6)
14 6.0 ± 0.6 (6)a 6.4 ± 0.5 (6)a 4.8 ± 0.5 (6)b 5.0 ± 0.5 (6)b 7.2 ± 0.4 (6)a 0 (6)
21 2.7 ± 1.3 (2)2 3.0 ± 0.7 (2) 0 (3) 0 (3) 2.3 ± 2.3 (2)2 0 (3)
  1. 1Each number represents the mean virus copies/ml (log10) (±S.D.) generated from six groups of piglets on different DPCs and analyzed with ANOVA.
  2. 2Same as that in Table 1.
  3. a, bValues with different superscripts were significantly different (P < 0.05).