Unusual encounter: Isolation of Carnobacterium divergens in an immunocompetent patient with a meat grinder Injury. Case report

The genus Carnobacterium belongs to lactic acid bacteria, this group are composed by 12 species. These microorganisms are associated with mucosal surface, present in food-related habitats including plant, wine, milk, and meat environments. In humans, evidence of Carnobacterium spp., about the disease spectrum remains unknown. Current work is about a 25-year-old male, was admitted to the emergency room for transmetacarpal traumatic amputation of his left hand caused by a meat grinder. In deep soft tissue samples obtained from surgery, Carnobacterium divergens was isolated. He was treated with piperacillin-tazobactam and was switched to amoxicillin-clavulanate for five more days with clinical success. Written informed consent was obtained from the participating patient for publication of this case report and any accompanying images. Therefore, the pathogenic role of Carnobacterium spp., remains unknown and classically is not considered pathogenic to humans. However, in previous cases where was associated with infection, the described outcomes were good. The misidentification showed that conventional identification methods are not accurate.