Table 2.
S/P ratio’s obtained by PRRSV-specific IgG ELISA tests for PRRSV-vaccinated and experimentally infected pigs
| |
Post vaccination |
Post infection |
||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 days | 14 days | 28 days | 0 days | 14 days | 28 days | |||||||||||||
|
Animal |
V1 |
V2 |
V3 |
V1 |
V2 |
V3 |
V1 |
V2 |
V3 |
I1 |
I2 |
I3 |
I1 |
I2 |
I3 |
I1 |
I2 |
I3 |
|
Rope type |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cotton |
N |
N |
N |
N |
N |
N |
10.95 |
10.10 |
2.41 |
N |
N |
N |
2.28 |
6.70 |
* |
3.83 |
11.50 |
1.74 |
| Hemp |
N |
N |
N |
N |
N |
N |
11.64 |
10.86 |
2.61 |
‡ |
‡ |
‡ |
‡ |
‡ |
‡ |
‡ |
‡ |
‡ |
| Polyamide |
N |
N |
N |
N |
N |
N |
* |
3.41 |
1.61 |
‡ |
‡ |
‡ |
‡ |
‡ |
‡ |
|
|
|
| Polyester |
N |
N |
N |
N |
N |
N |
* |
4.68 |
0.88 |
N |
N |
N |
5.27 |
5.80 |
* |
7.68 |
11.37 |
* |
| Serum | N | N | N | ‡ | ‡ | ‡ | 2.15 | 1.32 | N | N | N | N | 0.88 | 1.09 | 2.24 | 1.46 | 1.91 | 0.77 |
PRRSV-specific IgG antibodies were detected in sera and oral fluids using the HerdChek* PRRS X3 ELISA kit (Idexx) and the PRRS OF kit (Idexx), respectively, according to the manufacturer’s instructions. For both assays, samples with an S/P ratio above 0.4 were considered positive for PRRSV-specific IgG antibodies.
‡: Samples were not collected.
*Samples could not be tested due to insufficient material.
N: Negative.