Comparison of Klebsiella pneumoniae, E.coli and Pseudomonas aeruginosa colonies on Endo agar. Lactose positive colonies of Escherichia coli and Klebsiella pneumoniae and lactose negative (lactose nonfermenting) colonies of Pseudomonas aeruginosa.

Klebsiella pneumoniae, Escherichia coli, P.aeruginosa colony morphology

Klebsiella pneumoniae, Escherichia coli and Pseudomonas aeruginosa on Endo agar. Cultivation 37°C, 24 hours.
Klebsiella pneumoniae usually grows in medium to large, mucoid, lactose positive colonies.