Johns Hopkins ABX Guide
Aeromonas
MICROBIOLOGY
- Gram-negative bacillus, a halophilic, facultative anaerobe that is a Proteobacterium (class Gammaproteobacteria).
- A ubiquitous organism, occurring in both fresh and brackish waters, usually in warmer climates.
- Oxidase positive but lactose-fermenting, motile with flagella (Figure).
- Cytochrome oxidase, catalase and indole positive.
- Able to ferment maltose, D-galactose and trehalose.
- It may contaminate food, especially fish.
- Oxidase positive but lactose-fermenting, motile with flagella (Figure).
- A. hydrophila is the most common and important human pathogen, but others seen frequently include A. caviae and A. veronii biovar sobria. Of 14 described species, all have been linked to human infection.
- A. caviae and A. veronii biovar sobria leading Aeromonas spp. causing travelers diarrhea.
- A. dhakensis: described as causing diarrhea in children (2002), may be misidentified in the lab as A. hydrophila, A. veronii, or A. caviae by commercial systems.
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Last updated: December 11, 2022
Citation
Auwaerter, Paul. "Aeromonas." Johns Hopkins ABX Guide, The Johns Hopkins University, 2022. Pediatrics Central, peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540010/all/Aeromonas.
Auwaerter P. Aeromonas. Johns Hopkins ABX Guide. The Johns Hopkins University; 2022. https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540010/all/Aeromonas. Accessed November 21, 2024.
Auwaerter, P. (2022). Aeromonas. In Johns Hopkins ABX Guide. The Johns Hopkins University. https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540010/all/Aeromonas
Auwaerter P. Aeromonas [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2022. [cited 2024 November 21]. Available from: https://peds.unboundmedicine.com/pedscentral/view/Johns_Hopkins_ABX_Guide/540010/all/Aeromonas.
* Article titles in AMA citation format should be in sentence-case
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BT - Johns Hopkins ABX Guide
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PB - The Johns Hopkins University
DB - Pediatrics Central
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