Age group

Serotype 1

Serotype 2

Serotype 3

Total

0 - 10 years

1 (8.3%)

8 (66.7%)

3 (25%)

12 (6.3%)

11 - 20 years

2 (6.25%)

26 (81.25%)

4 (12.5%)

32 (16.7%)

21 - 40 years

7 (7.7%)

67 (73.6%)

17 (18.7%)

91 (47.4)

41 - 60 years

2 (4.2%)

41 (85.4%)

5 (10.4%)

48 (25%)

 over 60 years

0 (0% )

5 (55.6%)

4 (44.4%)

9 (4.7%)

Total

12 (6.2%)

147 (76.6%)

33 (17.2%)

192

Chi square (P-value)

7.33 (0.062)

88.88 (0.00)

20.78 (0.00)