An 87-year old patient had a foot wound that grew gram-negat…
An 87-year old patient had a foot wound that grew gram-negative rods on McConkey agar as pink to dark pink oxidase-negative colonies along with the following results: TSI: A/A Indole: neg MR: neg VP: pos Citrate: pos H2S: neg Urea: pos. Motility: neg Ornithine: neg Antibiotic susceptibility: Carboxicillin and ampicillin resistant, all others sensitive. What is the MOST likely organism?