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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