Table 3

Sequence types, serotypes, macrolide-resistance genes, and transposons for 135 erythromycin-resistant pneumococci
Clonal complex ST NO. Serotype (no.) Resistance genes (no.) Transposons (no.)
ermB ermB+mefE Tn6002 Tn2010 Tn3872 Tn1545/6003 None
CC271 271 16 19F (16) 16 15 1
320 9 19A (9) 9 8 1
236 4 19F (4) 4 4
1464 1 19F (1) 1 1
6993 1 19F (1) 1 1
7758 1 19F (1) 1 1
7766 1 19F (1) 1 1
CC2754 2754 2 6A (1), untyped (1) 2 2
7749 2 13/28 (2) 2 2
7752 1 untyped (1) 1 1
7762 1 6B (1) 1 1
CC200 200 1 14 (1) 1 1
876 12 14 (11), 19F (1) 10 2 9 2 1
CC230 230 1 non-23F (1) 1 1
7769 1 non-7A/F (1) 1 1
CC3173 3173 2 6A (2) 2 2
7756 1 6B (1) 1 1
CC3397 3397 3 15 (3) 3 3
7768 1 15 (1) 1 1
CC6202 6202 3 15 (3) 3 3
7750 1 15 (1) 1 1
CC855 855 1 6A (1) 1 1
7760 1 6A (1) 1 1
CC4640 4640 3 untyped (3) 3 3
7753 1 untyped (1) 1 1
Singletons 81 12 23F (11), non-23F (1) 11 1 11 1
386 4 6B (4) 4 4
2572 7 non-23F (6), 24/31/40 (1) 6 1 5 1 1
180 3 3 (3) 3 2 1
2912 2 6A (2) 2 2
3500 2 8 (2) 2 2
7759 2 untyped (2) 2 1 1
982 2 6A (2) 2 2
99 2 11A/C/D (1), 16/36/37 (1) 2 2
OTsa 28 untyped (6), othersb (22) 25 3 19 3 3 1 2
Total 135 94 41 76 39 7 8 5

a Other sequence types. Only one isolate was identified as each of the other STs.

b Other serotypes included 3 (1), 6A (1), 6B (3), non-7A/F (1), 10B/C/F (1), non-12B/F (1), 14 (1), 15 (4), non-17F (1), non-19A/C/F (1), 19F (1), 23F (2), 13/28 (2), 21/39 (1), 24/31/40 (1).

Zhou et al.

Zhou et al. BMC Microbiology 2012 12:228   doi:10.1186/1471-2180-12-228

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