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Table 1 Frequency of PCR-confirmed influenza patients in Bavarian PICUs, 2010–2013. Data are shown by virus type/subtype (n = 51)

From: Continued high incidence of children with severe influenza A(H1N1)pdm09 admitted to paediatric intensive care units in Germany during the first three post-pandemic influenza seasons, 2010/11–2012/13

  Influenza type/subtype
Seasons All patients A A(H1N1)pdm09 A(H3N2) A (subtype n.a.) Ba
N (%) N (%) N (%) N (%) N (%) N (%)
Season 1 (Oct 2010–Sep 2011) 24 (100.0) 23 (95.8) 19 (79.2) 0 (0.0) 4 (16.7) b 1 (4.2)
Season 2 (Oct 2011–Sep 2012) 7 (100.0) 2 (28.6) 1 (14.3) 1 (14.3) 0 (0.0) 5 (71.4)
Season 3 (Oct 2012–Sep 2013) 20 (100.0) 16 (80.0) 13 (65.0) 3 (15.0) 0 (0.0) 4 (20.0)
Season 1–3 (Oct 2010–Sep 2013) 51 (100.0) 41 (80.4) 33 (64.7) 4 (7.8) 4 (7.8) 10 (19.6)
  1. aInfluenza B lineages in Season 1/2/3: B-Victoria 0/3/0, B-Yamagata 0/1/1, B without lineage 1/1/3
  2. bOne patient was diagnosed with both seasonal influenza A (without subtype) and A(H1N1)pdm09 by local PCR, and allocated for further analysis to the group influenza A (subtype n.a.)