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Volume 13, Number 11—November 2007

Research

Epidemiology of Streptococcus dysgalactiae subsp. equisimilis in Tropical Communities, Northern Australia

Malcolm McDonald*†Comments to Author , Rebecca J. Towers*, Ross M. Andrews*, Jonathan R. Carapetis*, and Bart J. Currie*
Author affiliations: *Menzies School of Health Research, Darwin, Northern Territory, Australia; †Royal Children’s Hospital, Melbourne, Victoria, Australia;

Main Article

Table 1

Streptococcal emm sequence subypes (STs) of study isolates by Lancefield type in 3 communities, Northern Territory, Australia*

Subtype Community 1
Community 2
Community 3
Total Total rate†
No. Rate† No. Rate† No. Rate†
GCS emmST
stC839.0 29 0.96 29 0.60
stG643.0 26 0.86 26 0.54
stGrobn.0 9 0.30 9 0.19
stC6979.0 8 0.26 1 0.07 9 0.19
stC839.2 4 0.16 4 0.08
stC6746.0 1 0.03 1 0.07 2 0.04
stC2sk.1 1 0.07 1 0.02
Total
77
2.54




3
0.20
80
1.65
GGS emmST
stC1400.0 34 1.13 5 1.69 27 1.76 66 1.36
stG4831.0 34 1.13 7 0.46 41 0.85
stG480.0 28 0.93 10 0.65 38 0.78
stG6792.0 35 1.16 1 0.34 1 0.07 37 0.76
stC74a.0 25 0.83 1 0.34 3 0.20 29 0.60
stC6979.0 8 0.26 2 0.13 10 0.21
stC5344.1 9 0.30 9 0.19
stG6.0 6 0.39 6 0.12
stG10.0 5 0.33 5 0.10
stG2078.0 4 0.26 4 0.08
stC.NSRT2.0 1 0.03 2 0.13 3 0.06
stC36.0 3 0.20 3 0.06
stC1400.4 2 0.13 2 0.04
stC1400.3 1 0.07 1 0.02
stG166b.0 1 0.07 1 0.02
stG480.3 1 0.07 1 0.02
stG652.0 1 0.03 1 0.02
Total 175 5.76 7 2.37 75 4.90 257 5.30

*GCS, group C streptococci; GGS, group G streptococci. Lancefield type and emmSTs do not always match and stC6979 can be either GCC or GGC.
†Per 100 consultations.

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