Table 3.

Proportion of different vaccination status of cases by age groups, 2009–2016

	2009–2011					2012–2016
Age group(s)	Number of cases (n)	0 dose(%)	1 dose (%)	≥2 doses (%)	Unknown (%)	Number of cases (n)	0 dose (%)	1 dose (%)	≥2 doses (%)	Unknown (%)
0–8 months	548	66.1	7.3	0.0	26.4	5862	91.2	3.0	0.0	5.8
9–23 months	769	28.9	32.6	3.8	34.7	4551	70.7	15.1	0.4	13.7
2–6 years	473	21.1	10.1	16.5	52.2	2646	53.7	9.6	7.6	29.1
7–15 years	315	7.9	8.9	11.1	72.1	761	33.0	10.0	10.5	46.5
16–24 years	558	20.6	5.0	1.4	73	1431	17.9	4.2	1.3	76.6
≥25 years	531	16.6	2.4	0.6	80.4	3917	16.4	2.0	0.4	81.3
Total	3194	28.6	12.8	4.8	53.9	19,168	58.1	7.0	1.8	33.2