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Table 2 Correlation between IFA and SVN PPIV1 antibody titers. A high agreement was observed between the two assays with 11 positive IFA and SVN samples not detected by the alternate test. The top and bottom numbers in each well represent the row, column, and total percentages, respectively

From: Detection of porcine parainfluenza virus type-1 antibody in swine serum using whole-virus ELISA, indirect fluorescence antibody and virus neutralizing assays

 

IFA

 

SVN

Neg

Pos

Total

Neg

186

11

197

94.42%

5.58%

100%

94.42%

6.29%

52.96%

50.00%

2.96%

100%

Pos

11

164

175

6.29%

93.71%

100%

5.58%

93.71%

47.04%

2.96%

44.09%

100%

Total

197

175

372

52.96%

47.04%

100 (row%)

100%

100%

100 (col%)

100%

100%

100 (tot%)

  1. SVN Serum virus neutralization, IFA Indirect fluorescence antibody assay