Highly pathogenic PRRSV 1-4-4 L1C variant: emergence, sources, and implications to the global industry
This PRRSV strain is affecting the U.S. Understanding where these viruses come from can help us stop this cycle.
This PRRSV strain is affecting the U.S. Understanding where these viruses come from can help us stop this cycle.
With more herds breaking with highly virulent PRRS strains, what can we do to prevent and control infection? How does the 1-4-4 L1C strain differ?
Here we will focus the discussion on the practical applications and on lessons learned from recent field studies on response strategies for PRRSV management in affected breeding herds.
In this article we will focus the discussion on the practical applications of the new monitoring systems.
Moving away from weekly batch management improved Time to stability, Time to baseline production and Total Piglet losses per 1,000 sows after a PRRS outbreak.
Genetic mutation and evolution of PRRSV can occur across all genes. Unlike ORF5, which only represents about 4% of the PRRSV genome, NGS can recover a whole PRRSV genome to be used in epidemiological investigations.
PRRS control measures also reduce the opportunities for different wild-type viruses to recombine and create more aggressive strains.