|Outbreak: Cal-Farms Parsley|
|Product: Parsley||Investigation Start Date: 10/20/2005|
|Location: Deschutes County, OR||Etiology: E. coli (STEC) O157:H7|
|Earliest known case onset date: 10/08/2005||Latest case onset date: 10/27/2005|
|Confirmed / Presumptive Case Counts: 3 / 61||Positive Samples (Environmental / Water) 10 / 2|
This 2005 McGrath's Fish House outbreak of E. coli O157:H7 infections was traced back to parsley from Cal-Farms. The journey to finding the source was interesting: 206 people interviewed, 64 ill people, extremely muddy field conditions, cattle near the flooded parsley fields, and even evidence of heavy deer presence.