Roseomonas: Difference between revisions
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Roseomonas
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=== Microbiology === |
=== Microbiology === |
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* Genus of [[Stain::Gram-negative]] [[Shape::bacillus|bacilli]] or [[Shape::coccobacillus|coccobacilli]] |
* Genus of slow-growing [[Stain::Gram-negative]] [[Shape::bacillus|bacilli]] or [[Shape::coccobacillus|coccobacilli]] within the family [[Family::Acetobacteraceae]] |
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* Previously referred to as CDC pink coccoid groups I through IV |
* Previously referred to as CDC pink coccoid groups I through IV |
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* Related to [[Methylobacterium]] |
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* Catalase and oxidase positive |
* Catalase and oxidase positive |
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* Non-fermentative |
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* Aerobic |
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* Pigmented, either pink or purple-pink |
* Pigmented, either pink or purple-pink |
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* Isolated from environmental samples including soil, water, and plants |
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* Species of possible clinical importance include: |
* Species of possible clinical importance include: |
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** [[Roseomonas gilardii]] subspecies gilardii (usually clinically important) and rosea |
** [[Roseomonas gilardii]] subspecies gilardii (usually clinically important) and rosea |
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** [[Roseomonas mucosa]] |
** [[Roseomonas mucosa]] |
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** ''Roseomonas'' genomospecies 4, 5, and 6 |
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== Clinical Manifestations == |
== Clinical Manifestations == |
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* More common in patients with significant comorbidities or immunocompromise |
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* Bacteremia |
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** Malignancy on chemotherapy (solid-organ and hematologic), particularly with neutropenia |
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* Central line infection |
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** Also advanced HIV, CKD, and diabetes mellitus |
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* Intraabdominal abscess |
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* [[Gram-negative bacteremia|Bacteremia]] (75%), including [[central line infection]] |
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* Respiratory tract infection |
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* Musculoskeletal infections (8%), including [[osteomyelitis]] and [[septic arthritis]] |
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* Urinary tract infection |
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* [[Skin and soft tissue infection]] (6%) |
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* [[Peritoneal dialysis-associated peritonitis]] (6%) |
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* Extremely rare cases of endophthalmitis, endocarditis, pneumonia, ventriculitis, and pre-aortic abscess |
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* Often seen in polymicrobial cultures, particularly [[coagulase-negative staphylococci]], [[Micrococcus]], [[Pseudomonas]], coryneform bacteria, and many others |
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== Management == |
== Management == |
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* Generally susceptible to [[aminoglycosides]], [[tetracycline]], and [[imipenem]] |
* Generally susceptible to [[aminoglycosides]], [[tetracycline]], and [[imipenem]] |
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* May be susceptible to [[fluoroquinolones|fluoro]]{{DISPLAYTITLE:''Roseomonas''}}[[fluoroquinolones|quinolones]] |
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* Generally resistant to [[penicillins]] (including combinations with β-lactamase inhibitors), [[cephalosporins]], and [[co-trimoxazole]] |
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* Remove the central line if [[CLABSI]] is suspected |
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== Further Reading == |
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* ''Roseomonas'' species infections in humans: a systematic review. ''J Chemother''. 2020;32(5):226-236. doi: [https://doi.org/10.1080/1120009x.2020.1785742 10.1080/1120009X.2020.1785742] |
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[[Category:Gram-negative bacilli]] |
[[Category:Gram-negative bacilli]] |
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Latest revision as of 01:33, 6 July 2022
Background
Microbiology
- Genus of slow-growing Gram-negative bacilli or coccobacilli within the family Acetobacteraceae
- Previously referred to as CDC pink coccoid groups I through IV
- Related to Methylobacterium
- Catalase and oxidase positive
- Non-fermentative
- Aerobic
- Pigmented, either pink or purple-pink
- Isolated from environmental samples including soil, water, and plants
- Species of possible clinical importance include:
- Roseomonas gilardii subspecies gilardii (usually clinically important) and rosea
- Roseomonas mucosa
- Roseomonas fauriae
- Roseomonas genomospecies 4, 5, and 6
Clinical Manifestations
- More common in patients with significant comorbidities or immunocompromise
- Malignancy on chemotherapy (solid-organ and hematologic), particularly with neutropenia
- Also advanced HIV, CKD, and diabetes mellitus
- Bacteremia (75%), including central line infection
- Musculoskeletal infections (8%), including osteomyelitis and septic arthritis
- Skin and soft tissue infection (6%)
- Peritoneal dialysis-associated peritonitis (6%)
- Extremely rare cases of endophthalmitis, endocarditis, pneumonia, ventriculitis, and pre-aortic abscess
- Often seen in polymicrobial cultures, particularly coagulase-negative staphylococci, Micrococcus, Pseudomonas, coryneform bacteria, and many others
Management
- Generally susceptible to aminoglycosides, tetracycline, and imipenem
- May be susceptible to fluoroquinolones
- Generally resistant to penicillins (including combinations with β-lactamase inhibitors), cephalosporins, and co-trimoxazole
- Remove the central line if CLABSI is suspected
Further Reading
- Roseomonas species infections in humans: a systematic review. J Chemother. 2020;32(5):226-236. doi: 10.1080/1120009X.2020.1785742
