Stratford News First case of PED found in Huron County SHARE ON: Patrick Grapes, staff Monday, Mar. 10th, 2014 Porcine Epidemic Diarrhea is still spreading. The Ontario Ministry of Agriculture has confirmed the first case of the disease in Huron County. OMAFRA also confirmed two other cases on Friday, one in Oxford and one in Middlesex County. Since January 22nd, when the deadly disease was first confirmed in Ontario, 28 cases have been found in the province. That number includes four in Perth County.