We report an immunocompromised child who experienced two episodes of bacteremia due to Streptococcus
pyogenes. Random amplification of polymorphic DNA profiles, emm genotypes, superantigen
profiles, antimicrobial susceptibility, and resistance-related genes were investigated, and the results
showed different profiles between the two isolates. This is the first report describing recurrent bacteremia
caused by different strains of S. pyogenes.
© 2016, Japanese Society of Chemotherap