Table 1.

Serotypes causing IPD in 2019–2022 stratified by year and age (children <18 years and adults ≥18 years of age) and grouped by vaccine serotypes.

	2019		2020		2021		2022
Serotype	Children	Adults	Children	Adults	Children	Adults	Children	Adults
7-valent vaccine serotypes
4	0	4	0	5	0	11	0	49
6B	0	0	0	0	0	0	0	0
9V	0	0	0	1	0	2	0	7
14	0	0	0	0	0	0	0	1
18C	0	0	0	0	0	0	0	0
19F	1	2	1	1	0	1	3	1
23F	0	0	0	0	0	0	0	0
10-valent vaccine serotypes
1	0	0	0	0	0	0	0	0
5	0	0	0	0	0	0	0	0
7F	0	20	0	10	1	7	0	12
13-valent vaccine serotypes
3	2	18	0	8	0	8	2	22
6A	0	1	0	0	0	0	0	0
19A	0	2	0	1	0	0	0	7
15-valent vaccine serotypes
22F	4	12	1	6	1	6	2	8
33F	0	3	0	0	0	1	0	3
20-valent vaccine serotypes
8	1	2	0	2	0	4	1	5
10A	0	1	1	0	0	0	0	4
11A	0	2	0	3	0	0	2	4
12F	0	6	0	9	0	0	0	2
15B	0	3	0	0	1	0	2	1
23-valent polysaccharide vaccine serotypes
2	0	0	0	0	0	0	0	0
9N	1	8	0	12	0	9	0	11
17F	0	1	0	0	0	0	1	0
20	0	11	0	4	0	4	2	10
Other serotypes
6C	0	2	0	1	0	3	0	1
7C	0	1	0	1	0	1	0	1
13	0	2	0	0	0	1	0	1
15A	0	4	0	2	0	2	0	2
15C	0	1	0	1	0	0	1	1
16F	0	3	0	2	0	1	0	2
21	0	0	0	0	0	0	1	0
23A	2	4	0	4	0	2	0	0
23B	3	2	0	0	0	2	0	4
28A	0	0	0	1	0	0	0	1
29	0	0	0	0	0	0	1	0
31	0	7	0	3	1	3	0	1
34	0	1	0	0	0	0	0	1
35B	0	4	1	1	0	1	2	0
35F	0	1	0	0	0	0	1	1
38	0	3	0	0	0	0	0	0
Missing	0	0	0	0	1	1	5	9
Total	14	131	4	78	5	70	26	172