Skip to main content

Table 1 Respiratory scores measured on different DPCs

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

DPCs Scores 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 1.43 ± 0.20 (6)a 1.67 ± 0.21 (6)a 0 (6)b 0 (6)b 1.60 ± 0.24 (6)a 0 (6)
7 2.71 ± 0.29 (6)a 3.0 ± 0.37 (6)a 0.71 ± 0.29 (6)b 1.12 ± 0.31 (6)b 3.0 ± 0.32 (6)a 0 (6)
10 3.25 ± 0.48 (6)a 3.5 ± 0.22 (6)a 0.50 ± 0.29 (6)b 0.83 ± 0.31 (6)b 3.33 ± 0.33 (6)a 0 (6)
14 3.5 ± 0.29 (6)a 2.33 ± 0.21 (6)a 0 (6)b 0.33 ± 0.22 (6)b 3.67 ± 0.33 (6)a 0 (6)
21 1.33 ± 0.33 (2)2 1.67 ± 0.33 (3) 0 (3) 0 (3) 1.50 ± 0.50 (2)2 0 (6)
28 0.67 ± 0.33 (2) 1.33 ± 0.33 (3) 0 (3) 0 (3) 0.5 ± 0.5 (2) 0 (6)
  1. 1Respiratory scores were given from 0 to 4: 0, normal; 1, tachypnea when stressed; 2, tachypnea at rest; 3, tachypnea and dyspnea at rest; 4, severe tachypnea and dyspnea with labored, jerky breathing. Each number represents the mean scores (±S.D.) generated from six groups of piglets on different DPCs and analyzed with ANOVA.
  2. 2The numbers in parentheses were the numbers of piglets measured on different DPCs and one piglet from each of Group 1 and Group 5 died from PRRS on 16 DPC and 18 DPC, respectively.
  3. a,bValues with different superscripts were significantly different (P < 0.05).