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An Outbreak of Serratia marcescens in a Moroccan Neonatal Intensive Care Unit

Abdellatif Daoudi1,2, Fatiha Benaoui1,2, Nadia El Idrissi Slitine1,2

  • 1Neonatal Intensive Care Unit, Mother-Child Center, Mohammed VI University Medical Hospital of Marrakesh, Morocco.

Advances in Medicine
|December 6, 2018
PubMed

Insights

Serratia marcescens causes severe nosocomial infections in newborns, often leading to outbreaks. This study found a high fatality rate, highlighting the critical need for effective control strategies against this opportunistic pathogen.

Area of Science:

  • Medical Microbiology
  • Infectious Diseases
  • Neonatal Care

Background:

  • Serratia marcescens is an environmental Enterobacteriaceae, a known cause of nosocomial infections.
  • Neonatal infections with S. marcescens are rare but severe, frequently occurring in outbreaks.
  • This microorganism poses a significant threat in neonatal intensive care units.

Purpose of the Study:

  • To report on an outbreak of Serratia marcescens in a neonatal intensive care unit.
  • To illustrate the severity and clinical impact of S. marcescens infections in newborns.
  • To review the literature on Serratia marcescens nosocomial infections.

Main Methods:

  • Retrospective study of 8 newborns with S. marcescens nosocomial infection.
  • Data collected over 2 months (July-August 2016) in a neonatal intensive care unit.
  • Infection diagnosis confirmed by blood cultures; antibiotic sensitivity testing performed.

Main Results:

  • The mean gestational age was 36 weeks; 75% of cases were male with an average weight of 1853g.
  • S. marcescens infection lasted a mean of 7 days, with initial empiric therapy of ceftriaxone and gentamicin.
  • A high fatality rate of 62.5% was observed; 75% of strains were sensitive to cephalosporins.

Conclusions:

  • Serratia marcescens infections in newborns are severe and associated with high mortality.
  • Outbreaks of S. marcescens are challenging to eradicate in healthcare settings.
  • Effective surveillance and infection control measures are crucial for managing S. marcescens in neonatal populations.

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