Source: http://www.cbc.ca/ By: CBC News
The shock, the investigation and the aftermath
Canada’s worst-ever outbreak of E. coli contamination took hold 10 years ago in a typically quiet town in the rural heartland of Bruce County, Ontario.
The community of Walkerton, population less than 5,000 at the time, saw 2,300 people fall ill, and seven die, after breakdowns in the local water system. The region’s public health officer later said the catastrophe was probably preventable.