Strains

2005-2006 season

2006-2007 season

2007-2008 season

2008-2009 season

2009-2010 season

Before

(95% CI)

4 weeks after vacc. (95% CI)

Before

(95% CI)

4 weeks after vacc. (95% CI)

Before

(95% CI)

4 weeks after vacc. (95% CI)

Before

(95% CI)

4 weeks after vacc. (95% CI)

Before

(95% CI)

4 weeks after vacc. (95% CI)

H1N1

33.3 (24.5

-

42.1)

77.5 (69.7

-

85.3)

26.1 (17.9

-

34.3)

46.8 (37.5

-

56.1)

6.31 (1.79

-

10.8)

60.4 (51.3

-

69.5)

27.9 (19.6

-

36.2)

49.5 (40.2

-

58.8)

19.8 (12.4

-

27.2)

45.9 (36.6

-

55.2)

p-value

<0.01

<0.01

<0.01

<0.01

<0.01

H3N2

31.5 (22.9

-

40.1)

78.4 (70.7

-

86.1)

26.1 (17.9

-

34.3)

56.8 (47.6

-

66.0)

45.9 (36.6

-

55.2)

73.9 (65.7

-

82.1)

17.1 (10.1

-

24.1)

60.4 (51.3

-

69.5)

30.6 (22.0

-

39.2)

63.1 (54.1

-

72.1)

p-value

<0.01

<0.01

<0.01

<0.01

<0.01

B

20.7 (13.2

-

28.2)

47.7 (38.4

-

57.0)

9.91 (4.35

-

15.5)

20.7 (13.2

-

28.2)

13.5 (7.14

-

19.9)

25.2 (17.1

-

33.3)

15.3 (8.60

-

22.0)

28.8 (20.4

-

37.2)

17.1 (10.1

-

24.1)

36.9 (27.9

-

45.9)

p-value

<0.01

<0.01

<0.01

<0.01

<0.01