Table 4. PCV13, PPV23 and NVT serotype distribution among the three groups.

Serotype	Nurseries (1-3y) n = 165 (%)	DCCs (3-6y) n = 41 (%)	Primary school (6-13y) n = 4 (%)
PCV13 serotypes
7F	0 (0.0)	0 (0.0)	1 (25.0)
9V	0 (0.0)	1 (2.4)	0 (0.0)
19A	1 (0.6)	0 (0.0)	0 (0.0)
19F	7 (4.2)	3 (7.3)	0 (0.0)
PPV23 serotypes
9N	5 (3.0)	0 (0.0)	0 (0.0)
10A	9 (5.5)	2 (4.9)	0 (0.0)
11A	11 (6.7)	11 (26.8)	0 (0.0)
15B	28 (17.0)	2 (4.9)	0 (0.0)
17F	0 (0.0)	1 (2.4)	0 (0.0)
22F	1 (0.6)	0 (0.0)	0 (0.0)
33F	3 (1.8)	0 (0.0)	0 (0.0)
NVT serotypes
6C	3 (1.8)	4 (9.8)	0 (0.0)
15A	10 (6.1)	0 (0.0)	0 (0.0)
15C	12 (7.3)	3 (7.3)	0 (0.0)
21	3 (1.8)	0 (0.0)	0 (0.0)
23A	14 (8.5)	0 (0.0)	0 (0.0)
23B	4 (2.4)	4 (9.8)	1 (25.0)
24F	19 (11.5)	0 (0.0)	0 (0.0)
31	0 (0.0)	3 (7.3)	0 (0.0)
34	5 (3.0)	1 (2.4)	0 (0.0)
35B	7 (4.2)	3 (7.3)	0 (0.0)
35F	16 (9.7)	1 (2.4)	0 (0.0)
37	0 (0.0)	0 (0.0)	2 (50.0)
38	4 (2.4)	0 (0.0)	0 (0.0)
NT	3 (1.8)	2 (4.9)	0 (0.0)
Total PCV13	8 (4.8)	4 (9.8)	1 (25.0)
Total PPV23	57 (34.5)	16 (39.0)	0 (0.0)
Total NVT	100 (60.6)	21 (51.2)	3 (75.0)

n: number of isolates