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Table 2 Results of ELISA I (IDEXX PRRS X3 Ab test) for detection of PRRSV antibodies (mean, standard deviation (s.d.), minimum, maximum S/P values)

From: Comparison of different commercial ELISAs for detection of antibodies against porcine respiratory and reproductive syndrome virus in serum

S/P value

 

Mean

S.D.

Minimum

Maximum

Group 2

Positive

1.46

0.66

0.42

3.01

Negative

0.13

0.13

0.00

0.37

Group 3

 

0.01

0.02

0.00

0.20

Group 4

 

0.06

0.07

0.00

0.39

Group 5

Negative

0.07

0.06

0.00

0.31

Positive n = 2

-

-

0.64

2.22