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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