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Table 5 Results of recombinant indirect ELISAs (iEIA) and HI or commercial NP-specific ELISA obtained with 207 porcine field sera compared on a holding base

From: Distinction of subtype-specific antibodies against European porcine influenza viruses by indirect ELISA based on recombinant hemagglutinin protein fragment-1

Holding

Sample

NP

H1av

H1N2

H1pdm

H1pdmN2

H3

  

cEIA IDVet

iEIA

HI

iEIA

HI

iEIA

HI

iEIA

HI

iEIA

HI

iEIA

1

6a

5b

4

5

6

1

0

4

4

n.d.

2

0

0

2

16

15

12

14

16

3

0

13

16

n.d.

16

6

6

3

9

7

7

7

7

9

2

3

6

n.d.

4

5

3

4

7

7

7

7

7

7

7

7

7

n.d.

7

7

7

5

5

5

5

5

5

5

5

5

5

n.d.

5

5

5

6

30

30

28

30

29

1

0

28

26

n.d.

20

0

3

7

30

24

26

22

22

3

1

17

15

n.d.

14

0

0

8

30

13

18

8

14

0

0

1

3

n.d.

3

0

0

9

30

18

28

28

26

0

1

26

21

n.d.

15

0

0

10

23

3

12

9

7

3

0

0

0

n.d.

0

1

0

11

13

11

12

13

13

3

1

12

11

n.d.

6

0

0

12

10

10

10

10

6

1

1

5

3

n.d.

3

0

0

  1. a Number of sample obtained in holding.
  2. b Number of sample rated positive in the respective assay.
  3. n.d. Not determined.