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    Detection of a widespread clone of Pseudomonas aeruginosa in a pediatric cystic fibrosis clinic

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    Author
    Armstrong, DS; Nixon, GM; Carzino, R; Bigham, A; Carlin, JB; Robins-Browne, RM; Grimwood, K
    Date
    2002-10-01
    Source Title
    AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
    Publisher
    AMER THORACIC SOC
    University of Melbourne Author/s
    Carlin, John; Robins-Browne, Roy; BIGHAM, ANDREA; ARMSTRONG, DAVID; NIXON, GILLIAN MICHELLE
    Affiliation
    Microbiology And Immunology
    Metadata
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    Document Type
    Journal Article
    Citations
    Armstrong, D. S., Nixon, G. M., Carzino, R., Bigham, A., Carlin, J. B., Robins-Browne, R. M. & Grimwood, K. (2002). Detection of a widespread clone of Pseudomonas aeruginosa in a pediatric cystic fibrosis clinic. AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 166 (7), pp.983-987. https://doi.org/10.1164/rccm.200204-269OC.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/26597
    DOI
    10.1164/rccm.200204-269OC
    Description

    C1 - Journal Articles Refereed

    Abstract
    Cross-infection by Pseudomonas aeruginosa between unrelated patients with cystic fibrosis (CF) is believed to be uncommon. After detecting a genotypically identical strain of P. aeruginosa in five unrelated children with CF dying from severe lung disease, we determined its prevalence within a large CF clinic using pulsed-field gel electrophoresis and random amplified polymorphic DNA assays. The clinical status of P. aeruginosa-infected patients was also determined. Between September and December 1999, 152 patients, aged 3.9-20.7 years, provided sputum for culture. P. aeruginosa was detected in 118 children of mean (SD) age 13.5 (3.8) years. The genotyping techniques were concordant, showing that 65 (55%) infected patients carried an indistinguishable or closely related strain. No distinctive antibiogram or environmental reservoir was found. Patients with the clonal strain were more likely than those with unrelated isolates to have been hospitalized in the preceding 12 months for respiratory exacerbations. This study demonstrates extensive spread of a single, clonal strain of P. aeruginosa in a large pediatric CF clinic. Whether this strain is also more virulent than sporadic isolates remains to be determined. As transmissible strains could emerge elsewhere, other CF clinics may also need to consider molecular methods of surveillance for cross-infection.
    Keywords
    Bacteriology ; Infectious Diseases

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