Proteus species

Proteus species is a topic covered in the Johns Hopkins ABX Guide.

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MICROBIOLOGY

Aerobic, Gram negative, urease-splitting rod.
- "Swarms" on moist agar (many flagella per organism).
- Second most commonly isolated Enterobacteriaceae after E. coli in many series.
Most common species: P. mirabilis (indole negative) causes 90% of infections. Other Proteus spp. are indole positive, e.g., P. vulgaris and P. penneri.
Can raise urine pH due to urea splitting activity.
- Other organisms commonly capable: Pseudomonas aeruginosa, Klebsiella pneumoniae, and Providencia species
P. mirabilis is usually resistant to tetracycline and nitrofurantoin, while 10-20% are resistant to ampicillin or cephalexin. P. vulgaris usually resistant to ampicillin or cephalexin/cefazolin.

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Last updated: November 2, 2015

Citation

Auwaerter, Paul. "Proteus Species." Johns Hopkins ABX Guide, The Johns Hopkins University, 2015. Pediatrics Central, peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540454/all/Proteus_species.

Auwaerter P. Proteus species. Johns Hopkins ABX Guide. The Johns Hopkins University; 2015. https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540454/all/Proteus_species. Accessed April 21, 2019.

Auwaerter, P. (2015). Proteus species. In Johns Hopkins ABX Guide. Available from https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540454/all/Proteus_species

Auwaerter P. Proteus Species [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2015. [cited 2019 April 21]. Available from: https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540454/all/Proteus_species.

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TY - ELEC T1 - Proteus species ID - 540454 A1 - Auwaerter,Paul,M.D. Y1 - 2015/11/02/ BT - Johns Hopkins ABX Guide UR - https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540454/all/Proteus_species PB - The Johns Hopkins University DB - Pediatrics Central DP - Unbound Medicine ER -