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Distribution in clinical material and identification of Pseudomonas maltophilia
Abstract:
During the 10-year period ending March 1976, 128 (8.5%) of 1506 strains of Gram-negative non-fermentative bacteria submitted to the National Collection of Type Cultures for computer-assisted identification have been strains of Pseudomonas maltophilia. These figures suggest that Ps. maltophilia is both a relatively common species in clinical material in the United Kingdom and also that many laboratories experience difficulty in identifying this species. We report the sources from which our strains were isolated and also characteristics of the species by which it may be recognised. The clinical significance of Ps maltophilia is discussed and also the susceptibility of this species to certain antimicrobial agents.
Insights
Pseudomonas maltophilia is a common Gram-negative bacterium found in clinical samples. Many labs struggle with its identification, highlighting the need for better recognition and understanding of this species.
Area of Science:
- Medical Microbiology
- Bacteriology
Background:
- Pseudomonas maltophilia (now Burkholderia) is a Gram-negative non-fermentative bacterium.
- Identification challenges exist for this species in clinical laboratories.
Purpose of the Study:
- To report on the prevalence of Pseudomonas maltophilia in clinical material.
- To describe characteristics aiding in the identification of Pseudomonas maltophilia.
- To discuss the clinical significance and antimicrobial susceptibility of Pseudomonas maltophilia.
Main Methods:
- Computer-assisted identification of bacterial strains.
- Analysis of 1506 Gram-negative non-fermentative bacterial strains over a 10-year period.
- Isolation source tracking and phenotypic characterization.
Main Results:
- 128 strains (8.5%) of Pseudomonas maltophilia were identified.
- The species was found to be relatively common in UK clinical material.
- Key characteristics for recognition and antimicrobial susceptibility data were compiled.
Conclusions:
- Pseudomonas maltophilia is a significant and frequently encountered bacterium in clinical settings.
- Difficulties in identification suggest a need for improved diagnostic approaches.
- Understanding its clinical relevance and antimicrobial profile is crucial for patient care.