Comamonas testosteroni bacteremia: A rare unusual pathogen detected in a burned patient: Case report and literature review

INTRODUCTION AND IMPORTANCE: Comamonas testosteroni is a rare human pathogen that is not part of the human microbiome. There are only 51 cases reported worldwide with 7 cases resulted in death. CASE PRESENTATION: We report a case of a 16-year-old boy with an extended burn complicated by catheter-related bloodstream C. testosteroni infection. CLINICAL DISCUSSION: Comamonas species are usually community-acquired pathogens that are susceptible to a wide variety of antibiotics including aminoglycosides, fluoroquinolones, carbapenems, piperacillin-tazobactam, trimethoprim-sulfamethoxazole, and cephalosporins. However, in our case, we reported a nosocomial multidrug-resistant infection by C. testosteroni that responded only to colistin. CONCLUSION: Reporting unusual cases of nosocomial sepsis due to rare multidrug-resistant pathogens is detrimental. As it sheds light on how virulent nosocomial infections are becoming, and can be very alarming to other practitioners and clinical microbiologists, in order to achieve a better awareness of the importance of controlled antibiotics use.