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Pathogens causing community gastroenteritis in Australia.

Martha I Sinclair1, Margaret E Hellard, Rory Wolfe

  • 1Cooperative Research Center for Water Quality and Treatment, Department of Epidemiology and Preventive Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia. martha.sinclair@med.monash.edu.au

Journal of Gastroenterology and Hepatology
|October 26, 2005
PubMed
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Community gastroenteritis often involves undetected pathogens like Norovirus and E. coli. Children are more susceptible, experiencing prolonged symptoms, highlighting gaps in current surveillance and clinical practices for identifying infectious diarrhea causes.

Area of Science:

  • Gastroenterology
  • Infectious Diseases
  • Public Health

Background:

  • Community gastroenteritis cases often go undiagnosed due to lack of medical attention.
  • Limited understanding exists regarding the specific pathogens causing widespread gastroenteritis.

Purpose of the Study:

  • To identify pathogens responsible for community-acquired gastroenteritis.
  • To correlate identified pathogens with specific gastrointestinal symptoms and episode duration.

Main Methods:

  • Prospective study of 2811 subjects across 15 months within family units.
  • Fecal samples analyzed for bacterial, viral, and protozoal pathogens.
  • Gastroenteritis episode duration and symptoms (vomiting, nausea, diarrhea) were systematically recorded.

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Main Results:

  • Pathogens identified in 198 of 791 specimens; Norovirus (10.7%), E. coli (6.7%), Campylobacter (3.0%), and Giardia (2.5%) were most common.
  • Children exhibited higher susceptibility to most pathogens than adults.
  • Campylobacter and E. coli infections in children were associated with longer diarrhea duration compared to Norovirus.

Conclusions:

  • Current surveillance and clinical practices likely miss many community gastroenteritis pathogens.
  • The study underscores the need for improved diagnostic approaches to identify infectious diarrhea causes in the community.