date:Nov 05, 2018
as contaminated by this water.
When and how the irrigation canal became contaminated with the outbreak strain of E. coli O157:H7 is also uncertain. We know that a large concentrated animal feeding operation (CAFO) is located adjacent to this stretch of the irrigation canal where the samples were collected. This is one potential source. However, the investigation did not identify an obvious route for contamination of the irrigation canal from this facility. In addition, samples collected at the