From: A direct real-time polymerase chain reaction assay for rapid high-throughput detection of highly pathogenic North American porcine reproductive and respiratory syndrome virus in China without RNA purification
Method
No. of specismen
HP-PRRSV positive
HP-PRRSV negative
Positive rate, %
Correlation, %
dRT-PCR
144
94
50
65.3
100
cRT-PCRa
144b