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Table 4 Distributions of serotypes/subtypes in oral-penicillin-nonsusceptible isolates in China in 2000–2011

From: Population biology of 225 serogroup 6 Streptococcus pneumoniae isolates collected in China

Years No. Serotypes/subtypes CCs/STs
6A 6B-I 6B-II CC90 CC386 CC855 CC3173 Singletons*
2000-2002 39 4(10.3%) 3(7.7%) 32(82.1%) 27(69.2%) 3(7.7%) 2(5.1%) 0(0.0%) ST76 (3), ST473,ST802, ST902, ST4545
2003-2005 9 2(22.2%) 0(0.0%) 7(77.8%) 6(66.7%) 0(0.0%) 0(0.0%) 1(11.1%) ST282,ST8742
2006-2008 12 3(25.0%) 2(16.7%) 7(58.3%) 6(50.0%) 0(0.0%) 2(16.7) 2(16.7%) ST135
2009-2011 12 6(50.0%) 1(8.3%) 5(41.7%) 2(16.7%) 1(8.3%) 2(16.7%) 5(41.7%) ST135,ST2766
Total 71 15(21.1%) 6(8.5%) 51(71.8%) 41(57.7%) 4(5.6%) 6(8.5%) 8(11.3%)  
  1. Note: No oral-penicillin-nonsusceptible strain was present in 1997–1999.
  2. *The number of isolates is given in parentheses if more than one isolate was identified.