From: A novel protein chip for simultaneous detection of antibodies against four epidemic swine viruses in China
CSFV
PPV
JEV
PRRSV
SNR
1.78
2.35
3.38
1.58
Positive criteria
SNR > 1.78
SNR > 2.35
SNR > 3.38
SNR1.58
Negative criteria
SNR < 1.78
SNR < 2.35
SNR < 3.38
SNR < 1.58