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Achromobacter xylosoxidans isolates in Hawaii
Journal of Clinical Microbiology
|February 1, 1978
Summary
Achromobacter xylosoxidans, a gram-negative bacterium, was identified in nine Hawaii cases, often in mixed ear infections. Key features like colonial morphology and xylose oxidation helped distinguish it from similar bacteria.
Area of Science:
- Microbiology
- Clinical Bacteriology
Background:
- Achromobacter xylosoxidans is a non-fermentative, oxidase-positive, gram-negative rod.
- This bacterium can be found in various environments and has been implicated in human infections.
Purpose of the Study:
- To describe the clinical and bacteriological characteristics of Achromobacter xylosoxidans isolates in Hawaii.
- To identify key features for differentiating Achromobacter xylosoxidans from other similar bacteria.
Main Methods:
- Retrospective analysis of nine cases with Achromobacter xylosoxidans isolation.
- Evaluation of colonial morphology, biochemical tests (xylose oxidation), flagella staining, and antibiotic susceptibility patterns.
Main Results:
- Achromobacter xylosoxidans was isolated in nine cases in Hawaii.
- Five cases involved ear infections, often mixed with other gram-negative bacteria.
- Specific phenotypic characteristics (colonial morphology, xylose oxidation, flagella presence) and antibiotic susceptibility aided in its identification.
Conclusions:
- Achromobacter xylosoxidans can cause infections, including otitis, in Hawaii.
- A combination of phenotypic and biochemical tests is crucial for accurate identification and differentiation from other non-fermentative gram-negative rods.