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. 2016 May 16;12(9):2269–2277. doi: 10.1080/21645515.2016.1182275

Figure 1.

Figure 1.

Additional outcomes of quadrivalent influenza vaccine (QIV) versus trivalent influenza vaccine (TIV) at one-year time horizon Legend Perfect matching: 100% matching between B strain circulating and B strain included in TIV; Average season: mean B strain matching over the last 8/10 seasons; High mismatch season: data from 2007–2008 season, with high mismatch between B strain included in trivalent influenza vaccine and B strain circulating.