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Table 3 Comparison of Northern and Southern Hemisphere vaccine strains with the circulating strains per year of observation (2006–2011)

From: National Influenza Surveillance in the Philippines from 2006 to 2012: seasonality and circulating strains

Northern Hemisphere vaccine strains % Matching
Circulating strains
Southern Hemisphere vaccine strains % Matching
Circulating strains
2005–2006   2006  
A/New Caledonia/20/99 (H1N1)-like 45 A/New Caledonia/20/99 (H1N1)-like 45
A/California/7/2004-(H3N2)-like a 20 A/California/7/2004-(H3N2)-likea 20
B/Shanghai/361/2002-like virus
(YAMAGATA)
4 B/Malaysia/2506/2004-like
(VICTORIA)
27
Total Matching 69 Total Matching 92
aA/New York/55/2004(H3N2)-like virus was a circulating virus and was antigenically similar to A/California/7/2004-(H3N2)-like
2006–2007   2007  
A/New Caledonia/20/99 (H1N1)-like 34 A/New Caledonia/20/99 (H1N1)-like 34
A/Wisconsin/67/2005 (H3N2)-likea 3 A/Wisconsin/67/2005 (H3N2)-likea 3
B/Malaysia/2506/2004-like 2 B/Malaysia/2506/2004-like 2
Total matching 39 Total matching 39
2007–2008   2008  
A/Solomon Islands/3/2006 (H1N1) like 0 A/Solomon Islands/3/2006 (H1N1) like 0
A/Wisconsin/67/2005 (H3N2)-like 0.12 A/Brisbane/10/2007 (H3N2)-likea 14
B/Malaysia/2506/2004-like (VICTORIA lineage) 15 B/Florida/4/2006-like (YAMAGATA)b 55
Total matching 15.12 Total matching 69
aA/Brisbane/59/2007(H1N1)-like virus (one of the H3N2 circulating strains) is not antigenically similar to A/Solomon Islands/3/2006 (H1N1)-like virus; bB/Shanghai Yamagata lineage (circulating strain) is antigenically similar to B/Florida/4/2006-like virus
2008–2009   2009  
A/Brisbane/59/2007 (H1N1)-likea 1 A/Brisbane/59/2007 (H1N1)-likea 1
A/Brisbane/10/2007 (H3N2)-like 9 A/Brisbane/10/2007 (H3N2)-like 9
B/Florida/4/2006-like 0.18 B/Florida/4/2006-like 0.18
Total Matching 10.18 Total Matching 10.18
aA(H1N1) pdm09 was the H1N1 circulating virus for 2009  
2009–2010   2010  
A/Brisbane/59/2007 (H1N1)-like 0 A/California/7/2009 (H1N1)-likea 29
A/Brisbane/10/2007 (H3N2)-like 0 A/Perth/16/2009 (H3N2)-like 0
B/Brisbane/60/2008-like virus 37 B/Brisbane/60/2008-like 37
Total Matching 37 Total Matching 66
aA/California/7/2009 (H1N1)-like is antigenically similar to A(H1N1) pdm09 which is a circulating virus
2010 - 2011   2011  
A/California/7/2009 (H1N1)-like 53 A/California/7/2009 (H1N1)-like 53
A/Perth/16/2009 (H3N2)-like 4 A/Perth/16/2009 (H3N2)-like 4
B/Brisbane/60/2008-likea 6 B/Brisbane/60/2008-like 6
Total Matching 63 Total Matching 63
aB/Malaysia/2506/2004-like (Victoria lineage) another circulating strain is antigenically similar to B/Brisbane/60/2008-like