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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Which Bacteria Is Gram Negative Rods?

what virus or bacteria is gram neg rods, catalase +, oxidase -, cysteine -, urea -, nitrate +, glucose +, surcose +, lactose -, citrate+, Methyl red +, Voges-Proskauer +, indole -, and EMB +. Im thinking either pseudmonas aeruginosa, or proteus vulgaris?

posted on Thu, 13 Mar 2014
Twitter Thu, 17 Mar 2016 Answered on
Twitter Fri, 18 Mar 2016 Last reviewed on
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General & Family Physician,  's  Response
Hi,
Thanks for posting in HCM.
Pseudomonas aeruginosa is a common gram-negative rod-shaped bacterium. It is a prototypical "multidrug resistant (MDR) pathogen" that is recognised for its ubiquity and its association with serious illnesses – especially nosocomial infections such as ventilator-associated pneumonia and various sepsis syndromes.
Proteus vulgaris is a rod-shaped, nitrate-reducing, indole+ and catalase-positive, hydrogen sulfide-producing, Gram-negative bacterium. It is an opportunistic pathogen of humans. It is known to cause wound infections and urinary tract infections.
Hence, the description you have provided fits more in favor of Proteus vulgaris.
Hope the information provided would be helpful.
All the best.
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Which Bacteria Is Gram Negative Rods?

Hi, Thanks for posting in HCM. Pseudomonas aeruginosa is a common gram-negative rod-shaped bacterium. It is a prototypical multidrug resistant (MDR) pathogen that is recognised for its ubiquity and its association with serious illnesses – especially nosocomial infections such as ventilator-associated pneumonia and various sepsis syndromes. Proteus vulgaris is a rod-shaped, nitrate-reducing, indole+ and catalase-positive, hydrogen sulfide-producing, Gram-negative bacterium. It is an opportunistic pathogen of humans. It is known to cause wound infections and urinary tract infections. Hence, the description you have provided fits more in favor of Proteus vulgaris. Hope the information provided would be helpful. All the best.