Serotype distribution and antibiotic resistance of Streptococcus pneumoniae isolates collected at a Chinese hospital from 2011 to 2013

Table 2 Antimicrobial resistance of S. pneumoniae isolates

The serotypes of isolates	% of resistant isolates
The serotypes of isolates	Penicillins	Erythromycin	Tetracycline	Trimethoprim/sulfamethoxazole	Cephalosporin	Chloramphenicol	Meropenem	MDR^b,c
All serotypes (n = 94)	47.3	80.2	91.2	63.8	19.8	9.9	15.4	73.4
Serotype
19F (n = 40)	27.9	40.4	41.5	35.1	14.1	3.4	9.7	39.4
19A (n= 8)	4.3	8.5	8.5	7.4	0	0	0	7.4
6B (n = 7)	3.2	6.4	6.4	2.1	0	0	0	4.3
3 (n = 8)	2.1	2.1	7.4	2.1	1.1	0	0	2.1
Otherserotypes^a
(n = 18)	4.9	13.2	14.6	10.7	3.5	5.3	3.4	12.8
Untyped (n = 14)	4.9	9.6	12.8	6.4	1.1	1.2	2.3	7.4

^aIncluded are 11 serotypes
^bMultidrug-resistant isolates, i.e. resistant to three or four tested antimicrobials
^cThe PCVs covered the majority of serotypes that had MDR (n = 69) phenotypes [PCV7, 71.0 % (49/69); PCV10, 72.5 % (50/69); and PCV13, 89.9 % (62/69)]

ISSN: 1471-2334