Three cases of porcine epidemic diarrhea virus (PEDv) are confirmed in Manitoba, but the origins of each case is still unknown.

Manitoba Pork general manager Andrew Dickson says they are working diligently to trace back through each instance, although it's been hard to do.

"We're hoping this is just three isolated cases and there's some sort of connecting factor, which we'll find out what that is over the next couple of weeks," he says, "and hopefully we'll get that fixed and these will be the only cases we get."

Dickson stresses that all producers need to ramp up their biosecurity in order to minimize the spread of PEDv. That means taking measures like wearing boot covers and keeping track of who is visiting the farmyard or barns.

"For example, if you're delivering culled sows to an assembly yard, you should treat that assembly yard as being potentially infected with PEDv. So after you drop the sows off, those trailers should be taken to a proper wash station and certified for being cleaned, and have them properly washed and disinfected, and ideally baked," Dickson says.

Manitoba Pork is also encouraging producers to sign a Sharing of Information waiver. Dickson says if producers sign the waiver when their operation is PEDv-free, it will allow veterinarians and Manitoba Pork to communicate and react immediately if another case of PEDv comes up.