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First report of Kocuria marina bloodstream infection unrelated to a central venous catheter: a mini-review on an emerging and under-recognized opportunistic pathogen.

We report a case of sepsis by Kocuria marina in a 45-year-old woman carrying a midline venous catheter to provide total parenteral nutrition. Despite the finding of K. marina bacteraemia, no bacteria grew from the culture of the catheter tip. As the patient was affected with severe leg ulcers, K. marina bloodstream infection from a skin breakage other than CVC was supposed. K. marina is an emerging opportunistic agent deserving attention and probably under-recognized, as it can be misdiagnosed as Staphylococcus if only conventional microbiological analyses are performed for bacterial identification.