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This article is part of the supplement: International Conference on Prevention & Infection Control (ICPIC 2011)

Open Access Poster presentation

Serratia Marcescens outbreak on a general pediatric ward in Benin

TA Ahoyo1*, MF Adeoti2, AG Attolou3, M Boco4 and LS Baba Moussa5

  • * Corresponding author: TA Ahoyo

Author Affiliations

1 GBH Epac, University of Abomey Calavi Benin Ouest Africa , Cotonou, Benin

2 BIOCHIMY, RIPAQS International, Abidjan, Cote d'Ivoire

3 Quality Assurance, Hospital, Abomey, Benin

4 Microbiology, CHDZ/C Hospital, Abomey, Benin

5 FAST, University of Abomey Calavi Benin Ouest Africa, Cotonou, Benin

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BMC Proceedings 2011, 5(Suppl 6):P299  doi:10.1186/1753-6561-5-S6-P299

The electronic version of this article is the complete one and can be found online at:

Published:29 June 2011

© 2011 Ahoyo et al; licensee BioMed Central Ltd.

This is an open access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The consequences of infections with Serratia marcescens can be severe, so strategies for prevention are important.


Our study aimed to examine the resistance in this bacterium and the main factors increasing the risk of cross contamination.


6-months surveillance was conducted in the pediatric unit in Benin, from June 15th to December 15th, 2009.We examined various specimenobtained from hospitalized children and 940 samples taken from hands of medical personnel, and various hospital surfaces for Serratia marcescens presence. Susceptibilities against antimicrobial agents were tested by the disk diffusion method according to NCCLS guidelines.Aggressive infection control measures were instituted.


324/790 (41%) patients were studied; 123 (39%) were infected bySerratia marcescens, including septicaemia 65 (52,8%). 121 children were colonized 1 month later after admission. From hospital environment, 108/940 (11,50%) isolates were obtained. Antimicrobial susceptibility testing revealed 56 % strains displaying multiresistance. Comparison of resistance patterns in isolates blood cultures with those from hands of personnel showed similitude in 92% of cases. Infected patients were cohorted and placed on contact precautions. Investigation by the infection control team revealed that the distributors of antiseptic were the main path of Serratia marcescens dissemination.


New infection control policies and engineering plans were initiated on the basis of our results. Antimicrobial resistance is particularly harmful to infectious disease management in low-income countries since expensive second-line drugs are not readily available.

Disclosure of interest

None declared.


Also presented as P349.