Outbreak of vancomycin-resistant Enterococcus spp. in an Italian general intensive care unit

M. Peta, E. Carretto, D. Barbarini, A. Zamperoni, L. Carnevale, L. Perversi, M. Pagani, M. G. Bonora, R. Fontana, P. Marone, M. Langer

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Following the identification of two clinical isolates of vancomycin-resistant enterococci (VRE) from intensive care unit (ICU) patients, a surveillance programme detected that six of eight ICU patients were colonised by VRE. Standard epidemic control measures were instituted in the ICU. During a 16-month period, 13 (2.5%) of 509 ICU patients had VRE-positive swabs upon admission, and 43 (8.7%) of 496 VRE-negative patients were colonised by VRE in the ICU. Patients who acquired VRE in the ICU had a longer ICU stay (p <0.0001). No other statistically significant differences were demonstrated. Two patients had documented infection (infection/colonisation index, 3.6%; overall VRE infection frequency, 0.4%), but both recovered and were discharged. VRE colonisation did not increase the mortality rate. Automated ribotyping identified three clusters containing, respectively, the first 52 Enterococcus faecium isolates, two Enterococcus faecalis isolates, and two further isolates of E. faecium. Multilocus sequence typing demonstrated that two E. faecium isolates representative of the two ribotypes belonged to sequence types 78 and 18, and that these two isolates belonged to the epidemic lineage C1, which includes isolates with a wide circulation in northern Italy. The outbreak was controlled by continuous implementation of the infection control programme, and by the opening of a new unit with an improved structural design and hand-washing facilities.

Original languageEnglish
Pages (from-to)163-169
Number of pages7
JournalClinical Microbiology and Infection
Volume12
Issue number2
DOIs
Publication statusPublished - Feb 2006

Fingerprint

Disease Outbreaks
Intensive Care Units
Enterococcus faecium
Ribotyping
Infection
Multilocus Sequence Typing
Hand Disinfection
Vancomycin-Resistant Enterococci
Enterococcus faecalis
Infection Control
Italy
Mortality

Keywords

  • Epidemiology
  • Intensive care unit
  • Outbreak
  • Ribotyping
  • Surveillance
  • Vancomycin-resistant enterococci

ASJC Scopus subject areas

  • Microbiology
  • Microbiology (medical)

Cite this

Outbreak of vancomycin-resistant Enterococcus spp. in an Italian general intensive care unit. / Peta, M.; Carretto, E.; Barbarini, D.; Zamperoni, A.; Carnevale, L.; Perversi, L.; Pagani, M.; Bonora, M. G.; Fontana, R.; Marone, P.; Langer, M.

In: Clinical Microbiology and Infection, Vol. 12, No. 2, 02.2006, p. 163-169.

Research output: Contribution to journalArticle

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