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. 2004 Jan;132(1):145–149. doi: 10.1017/s0950268803001262

Surveillance of severe invasive group-G streptococcal infections and molecular typing of the isolates in Japan.

T Ikebe 1, S Murayama 1, K Saitoh 1, S Yamai 1, R Suzuki 1, J Isobe 1, D Tanaka 1, C Katsukawa 1, A Tamaru 1, A Katayama 1, Y Fujinaga 1, K Hoashi 1, H Watanabe 1; Working Group for Streptococci in Japan1
PMCID: PMC2870088  PMID: 14979600

Abstract

The number of patients with severe invasive group-G streptococcal (Streptococcus dysgalactiae subsp. equisimilis) infections has been increasing in Japan. The emm genotypes and SmaI-digested pulsed-field gel electrophoresis DNA profiles were variable among the strains isolated, suggesting there has not been clonal expansion of a specific subpopulation of strains. However, all strains carried scpA, ska, slo and sag genes, some of which may be involved in the pathogenesis of the disease.

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