title: Outbreak of neonatal infection by an endemic clone of Serratia marcescens.
abstract: BACKGROUND
  The outbreak occurred between February and June 2006 and included identification of the cases, analysis of medical records, cultures from environmental sources, resistance analyses and genotyping profile of Serratia marcescens.
  
  
  METHODS
  The cultures were composed of 13 blood isolates, 17 rectal and hand swabs and air sampling.
  
  
  RESULTS
  The data obtained by pulsed-field gel electrophoresis exhibited three strains that contaminated 24 patients. Systemic infection was the most common in neonates with lower weight, long periods of hospitalization, premature delivery and the use of mechanical ventilation.
  
  
  CONCLUSIONS
  This investigation revealed the multifactorial nature of the outbreak. An endemic clone of S. marcescens was detected.
authors.affiliation: Bacteriology and Mycology Section, Evandro Chagas Institute, Ananindeua, PA, Brazil. karlalima@iec.pa.gov.br
authors.forename: Karla Valéria Batista
authors.initials: KV
authors.lastname: Lima
authors.forename: Raimundo Gladson Corrêa
authors.initials: RG
authors.lastname: Carvalho
authors.forename: Irna Carla do Rosário Souza
authors.initials: IC
authors.lastname: Carneiro
authors.forename: Josiane Lílian de Sousa
authors.initials: JL
authors.lastname: Lima
authors.forename: Cintya de Oliveira
authors.initials: Cde O
authors.lastname: Sousa
authors.forename: Edvaldo Carlos Brito
authors.initials: EC
authors.lastname: Loureiro
authors.forename: Lena Líllian Canto de
authors.initials: LL
authors.lastname: Sá
authors.forename: Flávia Corrêa
authors.initials: FC
authors.lastname: Bastos
mesh_terms: D001938:Brazil / Q000453:epidemiology; D003428:Cross Infection / Q000453:epidemiology* / Q000382:microbiology; D004196:Disease Outbreaks; D016521:Electrophoresis, Gel, Pulsed-Field; D005260:Female; D005838:Genotype; D006801:Humans; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal; D008297:Male; D016868:Serratia Infections / Q000453:epidemiology* / Q000382:microbiology; D012706:Serratia marcescens / Q000235:genetics* / Q000302:isolation & purification