Table 1 Serotype distribution of S. pneumoniae isolates from children with acute otitis media by age group and potential vaccine coverige: 1994-2011

PCV7 serotypes

19 F

17

7

24

2

26 (20.3)

6 B

8

9

17

3

20 (15.6)

14

10

-

10

1

11 (8.6)

9 V

5

3

8

3

11 (8.6)

23 F

5

4

9

1

10 (7.8)

18 C

1

1

2

1

3 (2.3)

Total no.

46

24

70

11

81 (63.3)

Other vaccine serotypes

19 A

9

4

13

1

14 (10.9)

3

2

3

5

1

6 (4.7)

6 A

1

2

3

1

4 (3.1)

7 F

1

1

2

-

2 (1.6)

1

-

1

1

1

2 (1.6)

Total no.

13

11

24

4

28 (21.9)

Non-vaccine serotypes

15 B

2

3

5

-

5 (3.9)

23 A

2

1

3

-

3 (2.3)

11^a

-

2

2

-

2 (1.6)

13,28^b

-

1

1

1

2 (1.6)

15 C

-

2

2

-

2 (1.6)

10^a

1

1

2

-

2 (1.6)

16/36/37^b

-

-

-

1

1 (0.8)

24/31/40^b

-

1

1

-

1 (0.8)

NT^c

-

-

-

1

1 (0.8)

Total no.

5

11

16

3

19 (14.8)

Overall no. (%)

64 (50.0)

46 (35.9)

110 (85.9)

18 (14.1)

128 (100.0)

Percentage coverage rate of pneumococcal conjugate vaccines

PCV7

71.9

52.2

63.6

61.1

63.3

PCV10

73.4

56.5

66.4

66.7

66.4

PCV13

92.2

76.1

85.5

83.3

85.2