From: Comparison of viremia of type II porcine reproductive and respiratory syndrome virus in naturally infected pigs by zip nucleic acid probe-based real-time PCR
Animal status
PRDC
Asymptomatic
Pvalue
Number of tested pigs
133
444
Number of positive pigs (%)
112 (84.2)
79 (17.8)
<0.0001
Mean ± SDa
4.28 ± 1.31
2.72 ± 0.67
Mediana
4.21
2.75
Rangea
1.69 to 7.05
1.32 to 4.7