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Occurrence of Aeromonas hydrophila in acute gasteroenteritis among children

Rathinasamy Subashkumar1, Thangavelu Thayumanavan, Govindhasamy Vivekanandhan

  • 1Department of Environmental Sciences, Bharathiar University, Coimbatore, India.

The Indian Journal of Medical Research
|March 29, 2006
PubMed

Insights

Pathogenic Aeromonas hydrophila was detected in 9.7% of diarrheal stool samples from children in Coimbatore. Many isolates exhibited multidrug resistance and produced virulence factors, confirming their role in childhood gastroenteritis.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Public Health

Background:

  • Aeromonas hydrophila is a growing concern worldwide due to its role in childhood gastroenteritis.
  • While A. hydrophila infections are reported in Tamil Nadu, data from Coimbatore was lacking.
  • This study addresses the knowledge gap regarding A. hydrophila in Coimbatore.

Purpose of the Study:

  • To determine the occurrence of pathogenic A. hydrophila in diarrheal stool samples from children in Coimbatore.
  • To assess the antibiotic resistance patterns of isolated A. hydrophila strains.
  • To evaluate the virulence factors, including haemolysin, protease, and slime production.

Main Methods:

  • Isolation and identification of A. hydrophila from stool samples of children with acute diarrhea.
  • Determination of multiple antibiotic resistance using the disc diffusion method.
  • Confirmation of pathogenicity through haemolysin, protease, and slime production assays.

Main Results:

  • Aeromonas hydrophila was identified in 9.7% (21/216) of the collected stool samples.
  • A high prevalence of multidrug resistance was observed, with 20 isolates resistant to bacitracin.
  • Pathogenicity tests revealed that 100% produced protease, 95% produced haemolysin, and 76% produced slime.

Conclusions:

  • Pathogenic Aeromonas hydrophila strains are present in the Coimbatore region.
  • These findings highlight the etiological role of A. hydrophila in childhood diarrhea in the study area.
  • The prevalence of multidrug resistance and virulence factors underscores the public health significance of this pathogen.
Abstract

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