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Table 3 Comparison of Antibody Results and Seroconversion Factor for Reassortant Influenza B Viruses

From: Virological investigation of four outbreaks of influenza B reassortants in the northern region of Taiwan from October 2006 to February 2007

  

HI antibody results (titer)

     

Outbreak

Patient ID Number

P004

P009

P109

P139

P182

PCb

Seroconversion factorc

  

pred

poste

pre

post

pre

post

pre

post

pre

post

 

P004

P009

P109

P139

P182

II

B/Taiwan/3802/06

80

320

80

640

40

160

160

160

10

640

2560

4

8

4

1

64

(Cluster I)

B/Taiwan/3805/06

80

320

80

640

80

160

160

160

10

640

2560

4

8

2

1

64

III

B/Taiwan/3798/06

20

160

40

160

20

80

40

40

10

160

1280

8

4

4

1

16

 

B/Taiwan/3594/06

40

320

40

320

40

320

80

80

10

160

5120

8

8

8

1

16

sporadic

B/Taiwan/3853/06

20

160

80

160

40

160

80

80

10

160

1280

8

2

4

1

16

 

B/Taiwan/3001/06

20

160

40

320

20

80

40

40

< 10

80

2560

8

8

4

1

8

 

PCa (B/Malaysia)

40

160

80

160

20

80

40

40

10

80

640

4

2

4

1

8

  1. aPositive control (B/Malaysia/2506/04) antigen (CDC, Atlanta, USA).
  2. bPositive control (B/Malaysia/2506/04) reference sheep antiserum (CDC, Atlanta, USA).
  3. cSeroconversion factor represents the number of fold-increase in Serum HI titer post-vaccination.
  4. dPre-immune.
  5. ePost-immune.
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BMC Research Notes

ISSN: 1756-0500

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