Ewingella americana

**Semantic type:** Bacterium

**Definition:** A species of facultatively anaerobic, Gram negative, rod shaped bacterium assigned to the phylum Proteobacteria. This species is oxidase negative, fermentative, susceptible to ampicillin, amoxicillin-clavulanate, ceftazidime, ceftriaxone, cefotaxime, cefepime, ofloxacin, gentamicin, carbenicillin, and amikacin but resistant to cephalothin, penicillin G, and vancomycin. A rare human pathogen, it can be isolated from human blood, stool, urine, wounds, conjunctiva, respiratory tract, and peritoneal dialysate of immunocompromised patients.

**Synonyms:** - CDC Enteric Group 40 - EWINGELLA AMERICANA