Canada has discovered the highly contagious Porcine Epidemic Diarrhea virus (PEDV) within its pork industry, according to government and industry officials. The Ontario government is investigating a hog farm in the province's Middlesex County after a laboratory finding of the virus. Separately, one of Canada's biggest pork processors, Olymel LP, said tests also confirmed the virus at an unloading dock of its Saint-Esprit slaughter facility northeast of Montreal, Quebec. PEDV, which causes diarrhea, vomiting and severe dehydration in piglets, has turned up in 23 of the 50 states since its discovery in the U.S. last April. It is estimated to have already killed upwards of 5 million piglets in the U.S. The virus, which is already established in Europe and Asia, poses no threat to humans and is not a food safety risk.