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Table 1 Porcine reproductive and respiratory syndrome virus (PRRSV) antibody isotypes (IgM, IgA, and IgG) in oral fluid and serum samples collected from boars over day post inoculation (DPI)

From: Kinetics of the porcine reproductive and respiratory syndrome virus (PRRSV) humoral immune response in swine serum and oral fluids collected from individual boars

DPI Serum (mean S/P ratios) Oral fluid (mean S/P ratios)
Samples IgM IgA IgG Samples IgM IgA IgG
−7 72 0.10 d 0.35 b 0.03 d 70 0.02 g 0.15 g 0.01 i
0 72 0.19 d 0.31 b 0.03 d 68 0.02 g 0.08 g 0.01 i
1 - - - - 69 0.04 g 0.12 g 0.01 i
2 - - - - 68 0.04 g 0.13 g 0.02 i
3 12 0.05 d 0.23 b 0.01 d 70 0.07 g 0.16 g 0.02 i
4 - - - - 68 0.13 g 0.24 g 0.01 i
5 12 0.12 d 0.30 b 0.02 d 67 0.05 g 0.11 g 0.01 i
6 - - - - 66 0.09 g 0.12 g 0.01 i
7 72 0.82 c 0.58 b 0.05 d 69 0.30 f 0.23 g 0.03 i
8 - - - - 66 1.28 e 0.41 f 0.17 h
9 - - - - 66 2.32 c 0.95 e 0.59 g
10 12 3.56 b 1.70 a 0.87 c 70 2.72 b 1.45 b, c 0.99 f
11 - - - - 70 2.95 a 1.75 a 1.41 e
12 - - - - 70 2.70 b 1.59 a, b 1.78 d
13 - - - - 69 2.64 b 1.64 a 2.05 c
14 72 4.02 a 1.91 a 1.60 b 68 2.32 c 1.56 a, b 2.28 b
17 12 3.51 b 1.94 a 1.69 a, b 69 1.53 d 1.25 c, d 2.63 a
21 72 3.18 b 1.70 a 1.76 a 68 1.02 e 1.14 d, e 2.60 a
  1. a-i Superscripts within columns indicate statistically significant differences among means (Tukey’s Honestly Significant Differences test, p < 0.05).