CLINICAL RELEVANCE OF PSYCHROBACTER SANGUINIS: OCCURRENCE AND CHARACTERIZATION AS AN EMERGING PATHOGEN IN PATIENTS WITH SEPSIS AND PNEUMONIA
Abstract: Introduction: Psychrobacter sanguinis is a rarely reported Gram-negative organism, usually linked to cold environments, but it is increasingly being recognized as an opportunistic pathogen.
Materials and methods: Two blood culture isolates from hospitalized patients in Limanowa, Poland, were identified using MALDI-TOF MS and confirmed with 16S rRNA sequencing. Antimicrobial susceptibility testing was conducted via the gradient diffusion method.
Results: Both P. sanguinis strains showed low MICs for fluoroquinolones, extended-spectrum cephalosporins, and carbapenems, suggesting possible treatment options.
Conclusion: These cases highlight the growing clinical importance of P. sanguinis. Reliable molecular identification and systematic research are necessary to understand its pathogenic potential, resistance determinants, and epidemiological impact.
