Table 4 B lineage detected during each influenza season and comparison with the B lineage recommended by the World Health Organization for the trivalent influenza vaccine
From: Circulation of influenza A and B in the Czech Republic from 2000-2001 to 2015-2016
Season | Total B samples characterized | Yamagata lineage | Victoria lineage | Both lineages | Dominant circulating B lineage | B lineage in the trivalent vaccine | Mismatch | |||
|---|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | |||||
2000–2001 | 9 | 9 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Yamagata | No |
2001–2002 | 5 | 5 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Yamagata | No |
2002–2003 | 38 | 0 | 0.0 | 38 | 100.0 | 0 | 0.0 | Victoria | Victoria | No |
2003–2004 | 0 | – | – | – | – | – | – | Unknown | Victoria | Unknown |
2004–2005 | 40 | 40 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Yamagata | No |
2005–2006 | 122 | 0 | 0.0 | 122 | 100.0 | 0 | 0.0 | Victoria | Yamagata | Yes |
2006–2007 | 0 | – | – | – | – | – | – | Unknown | Victoria | Unknown |
2007–2008 | 62 | 62 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Victoria | Yes |
2008–2009 | 12 | 10 | 83.3 | 2 | 16.7 | 0 | 0.0 | Yamagata | Yamagata | No |
2009–2010 | 0 | – | – | – | – | – | – | Unknown | Victoria | Unknown |
2010–2011 | 30 | 0 | 0.0 | 30 | 100.0 | 0 | 0.0 | Victoria | Victoria | No |
2011–2012 | 52 | 4 | 7.7 | 48 | 92.3 | 0 | 0.0 | Victoria | Victoria | No |
2012–2013 | 117 | 117 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Yamagata | No |
2013–2014 | 0 | – | – | – | – | – | – | Unknown | Yamagata | No |
2014–2015 | 40 | 40 | 100.0 | 0 | 0.0 | 0 | 0.0 | Yamagata | Yamagata | No |
2015–2016 | 122 | 54 | 44.3 | 65 | 53.3 | 3 | 2.5 | Co-circulation | Yamagata | Partial |
Total | 649 | 341 | 52.5 | 305 | 47.0 | 3 | 0.5 | – | – | – |