While other provinces appear to have nipped Porcine Epidemic Diarrhea virus outbreaks in the bud, the highly-contagious disease continues to show up in more Ontario hog barns.
The Ontario toll increased by another three farms, all of them finisher barns, on Mar. 21.
There have now been outbreaks at 12 finisher barns since Mar. 4.
The only non-finisher-barn outbreak since then is a nursery-barn operation in Huron County.
The most recent finisher-barn cases are in Bruce, Huron and Brant counties.
Most finisher pigs recover from this virus after a few days of severe diarrhea and vomiting.
Nursing piglets usually die so mortality rates range from 80 to 100 per cent in farrowing barns.