Enterobacteriaceae IdentificationLaboratory testing algorithm for E. coli, Enterobacter aerogenes, Klebsiella pneumoniae, Serratia marcescens, Proteus vulgaris, and Proteus mirabilis Hover over the animation to start / stop rotationGram Stain ![]() Oxidase Test ![]() Enterobacteriaceae MacConkey Agar ![]() ![]() Escherichia coli MacConkey Agar - Positive Lactose ![]() ![]() Enterobacter aerogenes MacConkey Agar - Positive Lactose ![]() ![]() Klebsiella pneumoniae MacConkey Agar - Growth ![]() ![]() MacConkey Agar - Negative Lactose ![]() ![]() Proteus vulgaris MacConkey Agar - Negative Lactose ![]() ![]() Proteus mirabilis |
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