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Volume 15, Number 8—August 2009


Challenges of Investigating Community Outbreaks of Cyclosporiasis, British Columbia, Canada

Lena Shah, Laura MacDougallComments to Author , Andrea Ellis, Corinne Ong, Sion Shyng, Linda LeBlanc, and the British Columbia Cyclospora Investigation Team1
Author affiliations: Public Health Agency of Canada, Ottawa, Ontario, Canada (L. Shah); British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (L. Shah, L. MacDougall, C. Ong, S. Shyng); Public Health Agency of Canada, Guelph, Ontario, Canada (A. Ellis); Canadian Food Inspection Agency, Ottawa (L. LeBlanc)

Main Article

Table 2

Food items eaten more often by case-patients than by population controls, British Columbia, Canada, May 1–July 31, 2007*

Food item No. (%) case-patients Controls, %
Waterloo survey US FoodNet
Strawberries 16–17 (94–100) (1 unsure) 32 28
Romaine lettuce 15 (88) Any lettuce, 84 37
Garlic 12 (71) NA NA
Red peppers 14 (82) NA NA
Cilantro 12–15 (70–88) (3 unsure) 8 NA
Basil 14–16 (82–94) (2 unsure) 12 NA

*Case-patients were 17 persons with laboratory-confirmed cases interviewed during phase 2 (June 24–July 21, 2007). US FoodNet, Foodborne Diseases Active Surveillance Network; NA, not applicable.

Main Article

1British Columbia Cyclospora Investigation Team: Dan Moreau, Craig Nowakowski (Vancouver Island Health Authority); Mark Ritson, Arne Faremo (Vancouver Coastal Health Authority); Krista Wilson, Brian Gregory (Interior Health Authority); Susan Schleicher, Shendra Brisdon, Jason Stone (Fraser Health Authority); Julie Wong, Joe Fung, Linda Hoang (Provincial Health Services Authority Laboratories); and Lisa Wu (Canadian Food Inspection Agency, Burnaby).