Journal Article

An Outbreak of <i>Enterobacter hormaechei</i> Infection and Colonization in an Intensive Care Nursery

Peter N. Wenger, Jerome I. Tokars, Patrick Brennan, Carol Samel, Lee Bland, Michael Miller, Loretta Carson, Matthew Arduino, Paul Edelstein, Sonia Aguero, Conradine Riddle, Caroline O'Hara and William Jarvis

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 24, issue 6, pages 1243-1244
Published in print June 1997 | ISSN: 1058-4838
Published online June 1997 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/513650
An Outbreak of Enterobacter hormaechei Infection and Colonization in an Intensive Care Nursery

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Enterobacter hormaechei was first identified as a unique species in 1989. Between 29 November 1992 and 17 March 1993, an outbreak of E. hormaechei occurred among premature infants in the intensive care nursery (ICN) at The Hospital of the University of Pennsylvania. The 10 infants whose cultures were positive for E. hormaechei (six were infected and four were colonized) had a lower median estimated gestational age and birth weight than did other ICN infants; other risk factors for infection or colonization with E. hormaechei were not identified. Cultures from three isolettes and a doorknob in the ICN were positive for E. hormaechei. Pulsed-field gel electrophoresis of isolates from six patients and two isolettes were identical. Observations of health care workers revealed breaks in infection control techniques that may have allowed transmission of this organism. We found that E. hormaechei is a nosocomial pathogen that can infect vulnerable hospitalized patients and that can be transmitted from patient to patient when infection control techniques are inadequate.

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Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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