This case study is an investigation of a fictitious E. coli O157:H7 outbreak in the summer of 2014 from the federal perspective, with cases in Manitoba, Saskatchewan, Alberta, and British Columbia.
The objectives of this Toolkit are to demonstrate tools for use in enteric outbreak investigations. This case study is not designed to be an introductory course on enteric outbreak investigation in Canada; therefore, some background knowledge of enteric outbreak investigation and epidemiology is assumed. Further, the case study is not intended to be a guidance document for outbreak investigation in Canada, as all outbreaks are unique. You do not have to complete the case study in order to use the tools on Toolkit. You can search for the specific tools you are interested in and only use certain parts of the case study, either to provide an example of how the tool is used or as a practical exercise to familiarize yourself with the tool.
The overall objectives of this case study are:
- To demonstrate tools and resources that can be used for enteric outbreak investigations, and
- To provide an example of how multi-jurisdictional enteric outbreaks may be investigated from the federal perspective.
This case study is divided into four modules:
- Module 1: Cluster detection and initial investigation
- Module 2: Hypothesis generation
- Module 3: Weight of evidence
- Module 4: Concluding the investigation