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Table 4 Serum avidity in indirect HA1 ELISA

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

Recombinant HA

Serum specificity

 

H1N1pdm–A/Bayern/74/2009a

H1N1av –A/swine/Belzig/2/2001

H3N2 – A/swine Belzig/54/2001

 

No urea

Urea

AVI (%)

No urea

Urea

AVI (%)

No urea

Urea

AVI (%)

A/Germany/R26/2011 (H1N1pdm)

2,332 b

1,273

55

1,011

0,163

16

0,286

0,108

38

A/Swine/Germany/R2035/2011 (H1pdmN2)

1,359

0,266

20

0,292

0,109

37

0,306

0,099

32

A/Swine/Germany/R1738/2010 (H1N1av)

0,209

0,112

54

1,241

0,312

25

0,291

0,107

37

A/swine/Germany/R1207/2010 (H1N2)

0,176

0,16

91

0,078

0,061

78

0,087

0,06

69

A/swine/Germany/R76/2011 (H3N2)

0,182

0,111

61

0,159

0,121

76

0,768

0,147

19

  1. a Subtype and designation of influenza A virus isolate used to raise the respective serum.
  2. b Bold face indicates homologous rec HA1 – serum pair.
  3. AVI (%) - percentage avidity index.
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Virology Journal

ISSN: 1743-422X