Unclassified, citrate-positive member of the family Enterobacteriaceae resembling Escherichia coli

Abstract
Three isolates of an unclassified, oxidase-negative and citrate-positive, gram-negative bacillus belonging to the family Enterobacteriaceae were studied. With the exception of the citrate reactions, these strains most closely resembled Escherichia coli in their biochemical reactivity.