TABLE 3.

Prevalence of different serotypes among pneumonia episodes included in the study^a

Category and serotypeb	2001–2005		2006–2010		2011–2015
	No. of isolates (n = 195)	%	No. of isolates (n = 547)	%	No. of isolates (n = 354)	%
PCV7	48	24.6	97	17.7	36	10.2d,e
4	8	4.1	7	1.3c	2	0.6d
6B	6	3.1	7	1.3	3	0.8
9V	6	3.1	20	3.7	6	1.7
14	14	7.2	28	5.1	11	3.1
18C	2	1.0	4	0.7	5	1.4
19F	8	4.1	25	4.6	8	2.3
23F	4	2.1	6	1.1	1	0.3
Additional PCV13	107	54.9	254	46.4	139	39.3d
1	17	8.7	51	9.3	9	2.5d,e
3	54	27.7	93	17.0c	79	22.3
5	15	7.7	6	1.1	1	0.3d
6A	2	1.0	5	0.9	0	0.0
7F	13	6.7	48	8.8	18	5.1
19A	6	3.1	51	9.3c	32	9.0d
Non-PCV13	40	20.5	196	35.8c	179	50.6d,e
6C	0	0.0	11	2.0	10	2.8
8	3	1.5	8	1.5	18	5.1e
9L/N	2	1.0	9	1.6	12	3.4
10A	1	0.5	8	1.5	3	0.8
11A	5	2.6	23	4.2	13	3.7
12F	3	1.5	15	2.7	12	3.4
15A	1	0.5	9	1.6	6	1.7
15B	0	0.0	4	0.7	3	0.8
15C	1	0.5	3	0.5	1	0.3
16F	0	0.0	17	3.1c	8	2.3
17F	0	0.0	6	1.1	2	0.6
20	2	1.0	1	0.2	0	0.0
21	0	0.0	3	0.5	1	0.3
22F	3	1.5	12	2.2	15	4.2
23A	3	1.5	5	0.9	11	3.1e
23B	0	0.0	4	0.7	5	1.4
24F	0	0.0	11	2.0	7	2.0
31	2	1.0	11	2.0	8	2.3
33F	3	1.5	8	1.5	3	0.8e
35F	2	1.0	0	0.0	5	1.4e
35B	2	1.0	7	1.3	6	1.7
NTf	3	1.5	9	1.6	11	3.1
Other	4	2.1	12	2.2	19	5.4e

^aOnly pneumonia episodes for which the PUA test was performed reflected in this table.

^bPCV7, serotypes included in PCV7; additional PCV13, serotypes not included in PCV7 and included in PCV13; non-PCV13, serotypes not included in PCV13.

^cStatistically significant change (P < 0.0167) for 2001 to 2005 versus 2006 to 2010.

^dStatistically significant change (P < 0.0167) for 2001 to 2005 versus 2011 to 2015.

^eStatistically significant change (P < 0.0167) for 2006 to 2010 versus 2011 to 2015.

^fNT, nontypeable.