Johns Hopkins HIV Guide
Rhodococcus equi
Rhodococcus equi is a topic covered in the Johns Hopkins HIV Guide.
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MICROBIOLOGY
- Pleomorphic Gram-positive coryneform aerobic bacteria. Non-spore-forming, non-motile, non-fermenting, and weakly acid-fast on Ziehl-Neelsen smear.
- Appears coccoid in solid media and pleomorphic in liquid media.
- May be mistaken as "diphtheroid" contaminant or a Mycobacterium.
- Grows well on ordinary media, named "rhodo" (red) for salmon color. Mucoid coalescing colonies seen after 4 days growth on solid media.
- Soil inhabitant; infection via inhalation, inoculation or ingestion
- Recognized equine pathogen, foals serve as reservoir and develop pyogranulomatous pneumonia.
- R. equi is an intracellular pathogen and enters the phagosomes of macrophages.[2]
- Virulence plasmids are associated with human, equine, porcine, and caprine (goats) isolates.[1]
-- To view the remaining sections of this topic, please log in or purchase a subscription --
MICROBIOLOGY
- Pleomorphic Gram-positive coryneform aerobic bacteria. Non-spore-forming, non-motile, non-fermenting, and weakly acid-fast on Ziehl-Neelsen smear.
- Appears coccoid in solid media and pleomorphic in liquid media.
- May be mistaken as "diphtheroid" contaminant or a Mycobacterium.
- Grows well on ordinary media, named "rhodo" (red) for salmon color. Mucoid coalescing colonies seen after 4 days growth on solid media.
- Soil inhabitant; infection via inhalation, inoculation or ingestion
- Recognized equine pathogen, foals serve as reservoir and develop pyogranulomatous pneumonia.
- R. equi is an intracellular pathogen and enters the phagosomes of macrophages.[2]
- Virulence plasmids are associated with human, equine, porcine, and caprine (goats) isolates.[1]
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Last updated: August 29, 2021
Citation
Spacek, Lisa A. "Rhodococcus Equi." Johns Hopkins HIV Guide, 2021. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545179/all/Rhodococcus_equi.
Spacek LA. Rhodococcus equi. Johns Hopkins HIV Guide. 2021. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545179/all/Rhodococcus_equi. Accessed January 31, 2023.
Spacek, L. A. (2021). Rhodococcus equi. In Johns Hopkins HIV Guide https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545179/all/Rhodococcus_equi
Spacek LA. Rhodococcus Equi [Internet]. In: Johns Hopkins HIV Guide. ; 2021. [cited 2023 January 31]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545179/all/Rhodococcus_equi.
* Article titles in AMA citation format should be in sentence-case
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T1 - Rhodococcus equi
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A1 - Spacek,Lisa,M.D., Ph.D.
Y1 - 2021/08/29/
BT - Johns Hopkins HIV Guide
UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545179/all/Rhodococcus_equi
DB - Johns Hopkins Guide
DP - Unbound Medicine
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