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

  • T. IKEBE (a1), S. MURAYAMA (a2), K. SAITOH (a3), S. YAMAI (a4), R. SUZUKI (a4), J. ISOBE (a5), D. TANAKA (a5), C. KATSUKAWA (a6), A. TAMARU (a6), A. KATAYAMA (a7), Y. FUJINAGA (a7), K. HOASHI (a8) and H. WATANABE (a1)
  • DOI:
  • Published online: 01 January 2004

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.

Corresponding author
Dr H. Watanabe, National Institute of Infectious Diseases, Department of Bacteriology, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan.
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Epidemiology & Infection
  • ISSN: 0950-2688
  • EISSN: 1469-4409
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