Pipestone Applied Research (PAR) tracks initial PEDV outbreak to China

In this global economy, pork producers may easily import needed supplies and equipment; unfortunately that sourcing may also bring an unwanted global virus such as the Porcine Epidemic Diarrhea Virus (PEDV) that hitched a ride in 2013 to the United States.

Pipestone Applied Research (PAR) has traced the initial 2013 source of PEDV to inputs from China. By retracing the steps of the cargo that was targeted for pork production in the United States, Pipestone Applied Research was able to prove the Porcine Epidemic Diarrhea Virus entered the United States from China.

Pipestone Applied Research simulated the trip using a laboratory model, a logistics website and an environmental chamber. They retraced the path on which the infected imported ingredients traveled and found that PEDV survived the 37-day trip crossing the Pacific Ocean; cleared a customs port in San Francisco; and traveled by truck 1,800 miles across Interstate 80 to the heartland, ultimately landing on a pork production operation in Iowa.

To substantiate their claim, Pipestone looked at the strain of PEDV that initially entered United States in 2013 and found that it matched a strain of the virus that came from a specific province of China. In 2015, Pipestone studied feed ingredients and proved PEDV could survive in certain feed ingredients and infect pigs.

Pipestone's research also studied the use of additives such as medium chain fatty acids in feed ingredients and found that research samples treated with them were negative for live PEDV. Veterinarian Scott Dee, Director of Research for PAR, acknowledges more work is needed in this area but says there may be ways to protect the industry by treating and neutralizing the virus in feed.

To read more about the methods used and to view the results of the study, click here.