Significant increase in the prevalence of Panton-Valentine leukocidin-positive methicillin-resistant Staphylococcus aureus, particularly the USA300 variant ΨUSA300, in the Japanese community

Microbiol Spectr. 2023 Dec 12;11(6):e0124823. doi: 10.1128/spectrum.01248-23. Epub 2023 Nov 6.

Abstract

USA300 is an MRSA clone producing PVL, a toxin associated with SSTIs. ΨUSA300 is a USA300 variant recently identified in Japan by Takadama et al. (15). Here, we found that the prevalence rate of PVL-positive MRSA in S. aureus was elevated in the Japanese community, and ΨUSA300 accounted for most of them. ΨUSA300 strains have been isolated from several areas in Japan and were associated with deep-seated SSTIs. This study highlighted the emerging threat posed by ΨUSA300 in Japan.

Keywords: Panton–Valentine leukocidin; USA300; methicillin-resistant Staphylococcus aureus; ΨUSA300.

MeSH terms

  • Exotoxins / genetics
  • Humans
  • Japan / epidemiology
  • Methicillin-Resistant Staphylococcus aureus* / genetics
  • Prevalence
  • Staphylococcal Infections* / epidemiology
  • Staphylococcus aureus / genetics

Substances

  • Panton-Valentine leukocidin
  • Exotoxins