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Volume 11, Number 8—August 2005


Estimating Foodborne Gastroenteritis, Australia

Gillian Hall*Comments to Author , Martyn D. Kirk†, Niels Becker*, Joy E. Gregory‡, Leanne Unicomb§, Geoffrey Millard¶, Russell Stafford#, Karin Lalor‡, and the OzFoodNet Working Group
Author affiliations: *Australian National University, Canberra, Australian Capital Territory (ACT), Australia; †OzFoodNet, Canberra, ACT, Australia; ‡Department of Human Services, Melbourne, Victoria, Australia; §Hunter Population Health Unit, Wallsend, New South Wales, Australia; ¶ACT Analytical Laboratory, Weston Creek, ACT, Australia; #Queensland Health, Archerfield, Queensland, Australia

Main Article

Table A1

Sources of raw data and adjustments for each microorganism

Source/pathogen Raw data
Water Quality Study 1998–1989, Melbourne No. positive/no. stools tested
   E. coli, other (pathogenic, non-STEC)† 53/791
   Calicivirus† 75/703
   Rotavirus† 11/791
   Astrovirus/adenovirus† 9/791
   Cryptosporidium parvum† 13/791
   Giardia lamblia† 20/791
Queensland and South Australian laboratory data, various years 1995–2001 No. positive/no. stools tested
   Aeromonas spp. † 248/107,600
   Vibrio parahaemolyticus† 2/30,880
Victorian outbreaks, 4-year data, 1998–2001 Mean no. cases/y (range)
   Bacillus cereus‡§ 12 (0–37)
   Clostridium perfringens‡§ 60 (28–73)
   Staphylococcus aureus‡§ 15 (0–40)
National Notifiable Diseases Surveillance System, 5-year data, 1996–2000 Mean no. cases/y (range)
   Campylobacter spp. (AOA 4%)‡§ Not including NSW, 12,756 (11,829–13,528)
   Salmonella spp. (AOA 8%)§ 6,801 (5,791–7,712)
   Shigella spp. (AOA 40%)§ 626 (487–797)
   STEC (AOA 21%)‡§ 3-y data, South Australia only, 37 (18–51)
   Yersinia spp. (AOA 2%)§ 157 (74–212)

*STEC, Shiga toxin–producing Escherichia coli; AOA, adjusted for overseas acquired; NSW, New South Wales.
†Proportion applied to estimate of total gastroenteritis in Australia.
‡Population factor applied.
§Underreporting factors for outbreaks and moderate illness applied.

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