In a recent study, the University of Minnesota’s Morrison Swine Health Monitoring Project has provided new insights into the evolution of the Porcine Epidemic Diarrhea (PED) virus in the United States. Since its sudden emergence in 2013, PED has significantly impacted the U.S. swine industry, causing substantial neonatal mortality and health challenges across pig populations.
Dr. Lisa Becton, Associate Director of the Swine Health Information Center, highlighted that the study observed genetic differentiation of the PED virus over time, which is expected with viral evolution. Notably, sequences identified post-2017 have clustered into two distinct subclades. The research also found that the virus’s circulation appears to be confined to specific geographic regions, suggesting limited spread between sow farms in different areas.
Understanding these evolutionary dynamics is crucial for developing effective control strategies. Continuous monitoring of PED’s genetic changes can inform biosecurity measures, regional elimination efforts, and overall disease management practices. By tracking how the virus evolves and spreads, producers can better anticipate risks and implement targeted interventions to mitigate the impact of PED on the swine industry.
For more detailed information and access to related reports, visit the Swine Health Information Center’s website at swinehealth.org.
