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Volume 31, Number 4—April 2025
Research Letter
Emerging Trends in Streptococcal Toxic Shock Syndrome, Japan
Mugen Ujiie
Figure 2
Figure 2. Prevalence of Streptococcus pyogenes M1 strains in study of emerging trends in streptococcal toxic shock syndrome, Japan. M1UK lineage within emm1 genotype strains detected in Japan during 2018–2024 is indicated. Detection rate of the M1UK lineage increased after COVID-19 quarantine measures were lifted in the 19th week of 2023 and was higher in 2024 than at corresponding periods in 2023. *Data for 2023 through November 30. †Data for 2024 data through June 19.
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