Habitat
Gut, environment
Morphology
Rd, capsule, flagella
Culture
Mucoid colonies, has thick capsule
Lactose
Positive
Mannitol
Positive
Indol production
Negative
Methyl red
Negative
Votes-proskauer
Positive
Citrate utilization
Positive
Urease
Negative
H2S
Negative
Phenylalanine deaminase
Negative
Pathogenicity
Saprophytes
Rarely respiratory infections in humans
Species
E. Cloacae
E. Aerogenes