Two cases of chronic suppurative otitis media caused by Kerstersia gyiorum in Tanzania: is it an underappreciated pathogen in chronic otitis media?

SummaryTwo cases of mixed infection involving Kerstersia gyiorum causing chronic suppurative otitis media (CSOM) have been reported worldwide. We report, for the first time, two cases of CSOM due to mixed infections involving K. gyiorum in adults in Africa. Both isolates were intermediate susceptible to ciprofloxacin based on European Committee on Antimicrobial Susceptibility Testing (EUCAST) breakpoints