Canadian Journal of Infectious Diseases and Medical Microbiology

Canadian Journal of Infectious Diseases and Medical Microbiology / 1992 / Article

Original Article | Open Access

Volume 3 |Article ID 809648 |

A Mark Joffe, Kathy Volpel, Pamela C Kibsey, William Paranchych, "Epidemiological Studies of Nosocomial Infections with Pseudomonas aeruginosa Using a DNA Probe", Canadian Journal of Infectious Diseases and Medical Microbiology, vol. 3, Article ID 809648, 8 pages, 1992.

Epidemiological Studies of Nosocomial Infections with Pseudomonas aeruginosa Using a DNA Probe

Received09 Sep 1991
Accepted15 Nov 1991


A DNA probe encoding the Pseudomonas aeruginosa pilin gene has been developed in the authors’ laboratory and has been shown to be a useful epidemiological tool. In the present study this technology, together with other typing methods, has been used to define relatedness and possible transmission routes of P aeruginosa strains isolated in several hospital wards. Clusters of P aeruginosa infections, suspected to be the result of nosocomial transmission, developed in a general intensive care unit (ICU) and a neurosurgical ward/ICU, as well as in a burn unit, were studied using antibiograms, lipopolysaccharide-serotyping, and gene probe analysis. Results of these studies demonstrated that each of the general and neurosurgical ICU isolates were different, making nosocomial transmission very unlikely. However, within the burn unit, patient isolates had identical profiles, suggesting that spread between patients was occurring or that a common source of infection was present. Changes in infection control measures within the unit were introduced and may have contributed to eradication of the outbreak. DNA probe studies were valuable in clarifying epidemiological relatedness of isolates that was not evident with the other typing strategies and identified a possible burn-associated strain.

Copyright © 1992 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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