Porcine epidemic diarrhea virus was first diagnosed in Ontario in January of 2014. An outbreak investigation was conducted and it was hypothesized that feed containing spray-dried porcine plasma contaminated with the virus was a risk factor in the introduction and spread of the disease in Ontario.
Pasma T, Furness MC, Alves D, Aubry P; Outbreak Investigation of Porcine Epidemic Diarrhea in Swine in Ontario; Can Vet J. 2016 Jan;57(1):84-9. PMID: 26740705