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Table 1 Reduced antimicrobial susceptibility of Streptococcus pneumoniae in nasopharyngeal samples from Aboriginal and non-Aboriginal children

From: Aboriginal and non-Aboriginal children in Western Australia carry different serotypes of pneumococci with different antimicrobial susceptibility profiles

Isolate type Number of isolates % with reduced susceptibility to antimicrobial agent
Penicillina Erythromycin Tetracycline Cotrimoxazole Chloramphenicol
 7vPCV types
  Aboriginal 92 31.5 7.6 17.4 35.9 0.0
  Non-Aboriginal 162 35.2 26.5 27.2 43.8 21.6
 Non-vaccine types
  Aboriginal 151 15.2 4.0 3.3 4.6 0.0
  Non-Aboriginal 97 3.1 6.2 3.1 13.4 0.0
 Non-typeable
  Aboriginal 18 66.7 50.0 27.8 72.2 0.0
  Non-Aboriginal 5 60.0 40.0 60.0 80.0 0.0
 All pneumococci
  Aboriginal 261 24.5 8.4 10.7 22.6 0.0
  Non-Aboriginalb 265 23.8 19.2 18.9 33.2 13.2
  1. aPneumococci showed intermediate resistance to penicillin (MIC 0.065-1.0 μg/mL) except for 1 serotype 23F isolate that showed MIC =1.5 μg/mL
  2. bIncludes 1 isolate not serotyped