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Volume 5, Number 2—April 1999

Synopsis

Clonal Differences among Erythromycin-Resistant Streptococcus pyogenes in Spain

Emilio Perez-Trallero*, José María Marimón*, Milagrosa Montes*, Beatriz Orden†, and Manuela de Pablos‡
Author affiliations: *Universidad del País Vasco, San Sebastián, Spain; †Centro Especialidades "Argüelles," Madrid, Spain; ‡Hospital Txagorritxu, Vitoria, Spain

Main Article

Table

Annual distribution of clones of M-phenotype erythromycin– resistant Streptococcus pyogenes

Clonesa
Year Total M-phenotype A B C D E-O
(biotype/T type/emm type)
Gipuzkoa 1988-1990 8 7
Gipuzkoa 1991-1994 80 76 1 E (I/T1/emm1)
1 F (I/T28/emm28)
Gipuzkoa 1995 83 31 18 29 1 G (I/TB3264/emm ntb)
1 H (III/TB3264/emm2)
Gipuzkoa 1996 74 19 23 25 2 H
1 E
1 I (I/T4/emm4)
Gipuzkoa 1997 56 1 4 3 40 2 H
2 J (V/T8 25/emm75)
1 K (II/T2/emm2)
1 L (III/Tnt/emm3)
Madrid 1996 90 12 2 68 6 M (III/T12/emm12)
2 N (III/T12/emm12)
Vitoria 1996 33 1 30 1 1 O (III/Tnt/emm3)
Total 424c 9 172 46 163 23

aClone A: biotype III, type T12 emm12, pulsed-field gel electrophoresis (PFGE) pattern I; clone B: biotype I, type T4 emm4, PFGE pattern II; clone C: biotype I, type T4 emm4, PFGE pattern III; clone D: biotype V, type T8.25 emm75, PFGE pattern IV.
bnt: nontypeable.
cEleven strains were not typed.

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