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Table 1 Cut-off value for determination of four viral antibodies

From: A novel protein chip for simultaneous detection of antibodies against four epidemic swine viruses in China

 CSFVPPVJEVPRRSV
SNR1.782.353.381.58
Positive criteriaSNR > 1.78SNR > 2.35SNR > 3.38SNR1.58
Negative criteriaSNR < 1.78SNR < 2.35SNR < 3.38SNR < 1.58