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Journal of Clinical Microbiology, January 1998, p. 133-138, Vol. 36, No. 1
Department of Gastroenterology and Clinical
Nutrition1 and
Department of
Microbiology and Infectious Diseases,2 Royal
Children's Hospital, Melbourne, Victoria, Australia 3052
Received 7 August 1997/Returned for modification 12 September
1997/Accepted 10 October 1997
Acute infectious diarrhea is common in children. Control requires
knowledge of causes. Few comprehensive long-term studies of etiology
have been undertaken in developed countries. This report is of a
13-year survey of 4,637 children from 0 to 14 years of age, admitted to
a large children's hospital for treatment of gastroenteritis, in which
viruses, bacteria, and parasites were sought. A recognized enteric
pathogen was identified in 56.6% of children. Group A rotaviruses
occurred in 39.6% of children overall and in 55% of children 12 to 23 months of age. They were a frequent cause (18.7%) of acute
gastroenteritis in children under 6 months and in those aged 5 to 13 years (16%). Rotaviruses were almost entirely responsible for winter
admission peaks. Enteric adenovirus types 40 and 41 (6% overall) were
more frequent in children under 12 months (9.4%).
Salmonella spp. (5.8%) and Campylobacter jejuni (3.4%) were more common in children over 5 years (13.1% and 6.7%, respectively). The 43.5% of cases (60% in children under 6 months) where no enteric pathogen was identified are cause for concern.
The involvement of small viruses (including caliciviruses and
astroviruses) may be clarified when molecular biology techniques are
utilized to address this gap in our knowledge. This comprehensive 13-year study of the cause of acute infectious diarrhea in children in
developed countries reinforces the importance of rotavirus and
highlights a large group for whom the etiology remains unknown, an
issue of particular concern with babies under 6 months of age. New
techniques have the potential to identify old and new pathogens causing
disease in these vulnerable infants.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Etiology of Acute Gastroenteritis in Hospitalized
Children in Melbourne, Australia, from April 1980 to March
1993

*
Corresponding author. Mailing address: Department of
Gastroenterology and Clinical Nutrition, Royal Children's Hospital,
Parkville, Victoria, Australia 3052. Phone: 61 3 9345 5060. Fax: 61 3 9345 6240. E-mail:
barnesg{at}cryptic.rch.unimelb.edu.au.
Present address: Commonwealth Serum Laboratories Ltd.,
Parkville, Victoria, Australia 3052.
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