Table 1 Variations in HA amino acid sequence in recent influenza B viruses of Victoria lineage in Taiwan during 2006.10-2007.02 influenza season.

Outbreak

Virus strain(s)

2

4

2

5

4

8

4

9

7

9

8

0

8

3

1

0

0

1

1

6

1

2

1

1

2

7

1

2

8

1

2

9

1

3

4

1

3

5

1

4

6

1

5

4

1

6

4

1

7

6

1

8

2

1

8

6

1

8

9

1

9

7

1

9

9

2

0

4

2

1

4

2

1

6

2

1

7

2

1

8

2

2

0

2

2

1

2

2

8

2

3

0

Reference strains

B/Malaysia/2506/04

V

N

E

T

A

R

R

D

H

T

A

E

N

S

Y

V

A

D

E

T

D

T

N

A

L

T

S

A

N

V

T

I

G

B/Beijing/243/97

K

K

I

K

P

V

T

T

B/HK/330/2001

K

K

R

N

K

P

E

S

T

B/TW/N1582/02

K

K

R

N

E

P

E

T

B/TW/N384/03

K

K

R

N

E

P

I

E

T

B/TW/N3688/04

P

T

B/TW/M251/05

V

P

T

B/TW/S117/05

L

P

T

I

B/Taiwan/3009/06

A

P

H

K

P

H

K

T

T

B/Taiwan/3012/06

P

T

B/Taiwan/3014/06

P

T

II

B/Taiwan/3802/06

P

P

Y

A

T

F

V

V

B/Taiwan/3804/06

P

T

G

T

V

B/Taiwan/3805/06

P

P

T

F

A

K

A

V

B/Taiwan/3790/06

P

P

T

F

Y

V

B/Taiwan/3803/06

P

T

B/Taiwan/3791/06

P

T

B/Taiwan/3792/06

P

T

III

B/Taiwan/3017/06

Y

P

T

B/Taiwan/3798/06

P

T

B/Taiwan/3801/06

P

T

IV

B/Taiwan/3799/06

P

T

S

B/Taiwan/3800/06

P

T

S

B/Taiwan/3019/06

P

T

S

sporadic

B/Taiwan/3594/06*

P

T

B/Taiwan/3609/06

A

P

T

B/Taiwan/3733/06

P

S

T

B/Taiwan/3806/06

P

T

S

B/Taiwan/3853/06

P

T

D

B/Taiwan/3001/06

I

B/Taiwan/3007/06

P

T

M