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Table 4 Genetic determinants for cephalosporins and quinolones resistance in Shigella strains

From: Antimicrobial resistance and genetic characterization of Shigella spp. in Shanxi Province, China, during 2006–2016

Content S. flexneri S. soneni Total χ 2 P value
No. Tested No. Resistant Rate(%) No. Tested No. Resistant Rate(%) No. Tested No. Resistant Rate(%)
Cephalosporins 337 68 20.2 137 55 40.1 474 57 12.0 20.2 0
Quinolones 337 85 25.2 137 2 1.5 474 70 14.8 36.7 0
bla CTX-M-1-group 68 16 23.5 55 19 34.5 123 35 28.5 0.2 0.23
bla CTX-M-9-group 68 12 17.6 55 24 43.6 123 36 29.3 9.9 0
bla OXA 68 44 64.7 55 5 9.1 123 49 39.8 39.2 0
bla TEM 68 30 44.1 55 5 9.1 123 35 28.5 18.3 0
bla SHV 68 5 7.4 55 0 0.0 123 5 4.1 1.1 0.49
bla CMY 68 13 19.1 55 0 0.0 123 13 10.6 11.8 0
  1. A p value that < 0.05 was considered statistically significant that compared the resistance rates between S. flexneri and S. sonnei