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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 %