The Public Health Agency of Canada, which was created to streamline various public health duties like providing meaningful data on foodborne illness and provide leadership on public health issues (totally useless during the 2008 listeria in deli meats outbreak that killed 22) has gotten around to releasing so-called integrated surveillance data for selected enteric diseases in Canada.
This report focuses on the years 2000 to 2004. The pathogens described are Salmonella, Campylobacter, verotoxigenic Escherichia coli and Shigella. From 2000 to 2004, a general decline in reported rates of all four pathogens was observed in all except a few provinces. When looking at more long-term trends from 1995 to 2004, a similar decline was seen in nationally reported rates for all four pathogens. S. Typhimurium was the most frequently reported Salmonella serovar during the five-year period described, followed by S. Heidelberg and S. Enteritidis. C. jejuni remained the most prevalent Campylobacter species reported between 2000 and 2004. E. coli O157 comprised the majority of verotoxigenic E.coli isolates over these five years. Shigella sonnei was the most frequently reported Shigella species.
Hospitalizations, deaths, outbreaks and case clusters, as well as unusual isolation sites and travel-acquired infections are also explored in this report. Pathogenic E. coli was associated with the highest hospitalization rates over the five-year period, although Salmonella infections resulted in the largest number of deaths overall. Data on outbreaks and case clusters is limited to those reported to the National Enteric Surveillance Program (NESP) and the National Microbiology Laboratory (NML).
Which means, not much. The data is exceedingly limited, and why it took at least 5 years to report is baffling. Canadians can comfortably go back to sleep.