A Pan

C Capatti

C Gagliotti

C Venturelli

E Carretto

F Pedna

M Sarti

ML Moro

R Buttazzi

BMC Proceedings

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POSTER PRESENTATION Open Access
Increasing trends of Acinetobacter Baumannii
infections in Emilia-Romagna, Italy
C Gagliotti1*, A Pan1, R Buttazzi1, C Capatti2, E Carretto2, F Pedna3, M Sarti4, C Venturelli5, ML Moro1
From International Conference on Prevention & Infection Control (ICPIC 2011)
Geneva, Switzerland. 29 June – 2 July 2011
Introduction / objectives
Estimation of occurrence of Acinetobacter baumannii
isolates from the antimicrobial surveillance system of
Emilia-Romagna, Italy, 2005-2009.
Methods
Data were collected through the laboratory based regio-
nal surveillance system. All isolates of A. baumannii iso-
lates from blood, urine and respiratory samples were
included in the analysis. Duplicates from the same
patient/sample source within a 28 days period were
excluded.
Results
Rates of A. baumannii bacteraemia significantly increased
between 2005 and 2009, from 0.1 to 3.2 cases/100,000
inhabitants per year. The observed increase was due to
carbapenem-resistant isolates, while the number of carba-
penem-susceptible isolates remained substantially stable
over the study period. Importantly, the occurrence of car-
bapenem-resistant isolates showed a steep five-fold
increase between 2008 and 2009. These isolates belonged
to an epidemic strain detected in several departments of
4 hospital trusts in the Region. Similar trends were
observed for urine and respiratory isolates. The total
number of isolates in blood, urine and respiratory speci-
mens, including both colonizing and infecting strains,
increased from 51 in 2005 to 826 in 2009, with rates ris-
ing from 1.5 to 19.0 isolates/100,000 inhabitants per year.
Conclusion
The temporal trends of A. baumannii infections are dri-
ven by carbapenem-resistant strains. A regional-wide
outbreak of carbapenem-resistant A. baumannii
infections involving 4 hospital trust was observed in
Emilia-Romagna in 2009.
Disclosure of interest
None declared.
Author details
1Area Rischio Infettivo, Agenzia Sanitaria E Sociale Dell’Emilia-Romagna,
Bologna, Italy. 2Arcispedale S. Maria Nuova, Reggio Emilia, Italy. 3AUSL
Ravenna, Ravenna, Italy. 4Nuovo Ospedale S. Agostino Estense, Italy.
5Policlinico di Modena, Modena, Italy.
Published: 29 June 2011
doi:10.1186/1753-6561-5-S6-P292
Cite this article as: Gagliotti et al.: Increasing trends of Acinetobacter
Baumannii infections in Emilia-Romagna, Italy. BMC Proceedings 2011 5
(Suppl 6):P292.
Submit your next manuscript to BioMed Central
and take full advantage of: 
• Convenient online submission
• Thorough peer review
• No space constraints or color figure charges
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Submit your manuscript at 
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1Area Rischio Infettivo, Agenzia Sanitaria E Sociale Dell’Emilia-Romagna,
Bologna, Italy
Full list of author information is available at the end of the article
Gagliotti et al. BMC Proceedings 2011, 5(Suppl 6):P292
http://www.biomedcentral.com/1753-6561/5/S6/P292
© 2011 Gagliotti et al; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in
any medium, provided the original work is properly cited.


Increasing trends of Acinetobacter Baumannii infections in Emilia-Romagna, Italy

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POSTER PRESENTATION Open AccessIncreasing trends of Acinetobacter Baumanniiinfections in Emilia-Romagna, ItalyC Gagliotti1*, A Pan1, R Buttazzi1, C Capatti2, E Carretto2, F Pedna3, M Sarti4, C Venturelli5, ML Moro1From International Conference on Prevention & Infection Control (ICPIC 2011)Geneva, Switzerland. 29 June – 2 July 2011Introduction / objectivesEstimation of occurrence of Acinetobacter baumanniiisolates from the antimicrobial surveillance system ofEmilia-Romagna, Italy, 2005-2009.MethodsData were collected through the laboratory based regio-nal surveillance system. All isolates of A. baumannii iso-lates from blood, urine and respiratory samples wereincluded in the analysis. Duplicates from the samepatient/sample source within a 28 days period wereexcluded.ResultsRates of A. baumannii bacteraemia significantly increasedbetween 2005 and 2009, from 0.1 to 3.2 cases/100,000inhabitants per year. The observed increase was due tocarbapenem-resistant isolates, while the number of carba-penem-susceptible isolates remained substantially stableover the study period. Importantly, the occurrence of car-bapenem-resistant isolates showed a steep five-foldincrease between 2008 and 2009. These isolates belongedto an epidemic strain detected in several departments of4 hospital trusts in the Region. Similar trends wereobserved for urine and respiratory isolates. The totalnumber of isolates in blood, urine and respiratory speci-mens, including both colonizing and infecting strains,increased from 51 in 2005 to 826 in 2009, with rates ris-ing from 1.5 to 19.0 isolates/100,000 inhabitants per year.ConclusionThe temporal trends of A. baumannii infections are dri-ven by carbapenem-resistant strains. A regional-wideoutbreak of carbapenem-resistant A. baumanniiinfections involving 4 hospital trust was observed inEmilia-Romagna in 2009.Disclosure of interestNone declared.Author details1Area Rischio Infettivo, Agenzia Sanitaria E Sociale Dell’Emilia-Romagna,Bologna, Italy. 2Arcispedale S. Maria Nuova, Reggio Emilia, Italy. 3AUSLRavenna, Ravenna, Italy. 4Nuovo Ospedale S. Agostino Estense, Italy.5Policlinico di Modena, Modena, Italy.Published: 29 June 2011doi:10.1186/1753-6561-5-S6-P292Cite this article as: Gagliotti et al.: Increasing trends of AcinetobacterBaumannii infections in Emilia-Romagna, Italy. BMC Proceedings 2011 5(Suppl 6):P292.Submit your next manuscript to BioMed Centraland take full advantage of: • Convenient online submission• Thorough peer review• No space constraints or color figure charges• Immediate publication on acceptance• Inclusion in PubMed, CAS, Scopus and Google Scholar• Research which is freely available for redistributionSubmit your manuscript at www.biomedcentral.com/submit1Area Rischio Infettivo, Agenzia Sanitaria E Sociale Dell’Emilia-Romagna,Bologna, ItalyFull list of author information is available at the end of the articleGagliotti et al. BMC Proceedings 2011, 5(Suppl 6):P292http://www.biomedcentral.com/1753-6561/5/S6/P292© 2011 Gagliotti et al; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative CommonsAttribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction inany medium, provided the original work is properly cited.

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Increasing trends of Acinetobacter Baumannii infections in Emilia-Romagna, Italy

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