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Table 2 Influenza circulation and B lineage included in TIV by influenza season

From: Impact of quadrivalent influenza vaccine on public health and influenza-related costs in Australia

Season

B lineage included in TIV [11]

Influenza circulation [27, 28]

B lineage mismatcha

Number of influenza notified cases (corrected with other disease notifications) [55]

Influenza A (% of total)

Influenza B/Victoria (% of total)

Influenza B/Yamagata (% of total)

2002

Yamagata

77.2 %

21.9 %

0.9 %

High

5,626

2003

Victoria

99.2 %

0.2 %

0.6 %

High

5,149

2004

Victoria

75.0 %

4.2 %

20.8 %

High

2,718

2005

Yamagata

78.5 %

10.4 %

11.1 %

Medium

5,541

2006

Victoria

65.6 %

32.9 %

1.5 %

Low

3,597

2007

Victoria

94.7 %

1.2 %

4.1 %

High

11,356

2008

Yamagata

36.7 %

32.4 %

30.9 %

Medium

8,882

2010

Victoria

87.3 %

11.5 %

1.2 %

Low

9,905

2011

Victoria

68.8 %

30.6 %

0.6 %

Low

18,658

2012

Victoria

69.5 %

4.3 %

26.3 %

High

32,274

  1. TIV trivalent influenza vaccine, aLow: <33 %, Medium: [33 %; 66 %], High: >66 %