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An outbreak of hospital acquired diarrhea due to Aeromonas sobria

Neelam Taneja1, Sumeeta Khurana, Amita Trehan

  • 1Department of Medical Microbiology and Advanced Pediatric Center, Postgraduate Institute of Medical Education and Research, Chandigarh, India. drneelampgi@yahoo.com

Indian Pediatrics
|October 12, 2004
PubMed

Insights

An outbreak of Aeromonas sobria diarrhea affected six children in a pediatric hematology-oncology unit. Interventional measures successfully contained the outbreak, with most children recovering after treatment.

Area of Science:

  • Pediatric Hematology-Oncology
  • Infectious Diseases
  • Microbiology

Background:

  • An 18-bed pediatric hematology-oncology unit experienced an outbreak of acute diarrhea.
  • The outbreak occurred over a four-week period between March and April 2001.
  • One child presented with additional complications including cola-colored urine and pneumonia.

Purpose of the Study:

  • To identify the causative agent of the acute diarrhea outbreak.
  • To characterize the identified pathogen and its resistance patterns.
  • To determine the source of the outbreak and implement control measures.

Main Methods:

  • Stool samples were collected and analyzed for bacterial pathogens.
  • Aeromonas strains were isolated and characterized by biotype and antibiogram.
  • Environmental sampling was conducted to identify potential sources of infection.

Main Results:

  • Aeromonas strains with similar biotypes and antibiograms were identified in patients.
  • Salmonella senftenberg was co-detected in one patient with severe symptoms.
  • Aeromonas sobria, matching patient isolates, was found in one environmental site.
  • Diarrhea resolved spontaneously in two children and with antimicrobial therapy in three.

Conclusions:

  • Aeromonas sobria was identified as the likely causative agent of the outbreak.
  • Environmental contamination likely played a role in the transmission.
  • Prompt interventional measures were effective in containing the outbreak.

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