VanderWaal: Expect to see new PRRS sublineages emerge
Feb 01, 2022Jennifer Grullon
US pig producers know that many different strains of PRRS exist, but the continual emergence of new sub-lineages continues to destabilize progress towards PRRS control, said Kim VanderWaal, PhD,...
How to manage herd closure for PRRS elimination
Jan 30, 2022Jennifer Grullon
Herd closures to eliminate porcine reproductive and respiratory syndrome (PRRS) are on the increase due in part to the virulent variant identified as PRRS 1-4-4 L1C.
Virulent PRRS outbreaks in grow-finish require fast action to cut losses
Sep 22, 2021Jennifer Grullon
A particularly difficult variant of the porcine reproductive and respiratory syndrome (PRRS) virus recently hit hog farms in south-central Minnesota.
New PRRS 1-4-4 L1C variant presents dramatic symptoms, quick spread
Mar 25, 2021Jennifer Grullon
A new variant of the porcine reproductive and respiratory syndrome virus 1-4-4 L1C strain is challenging veterinarians, diagnosticians and swine herds in the upper Midwest.
Highly infectious PRRS variant causes high mortalities on sow farms
Mar 05, 2021Jennifer Grullon
A variant of the porcine reproductive and respiratory syndrome (PRRS) virus is taking a heavy toll on hog farms in southern Minnesota and northern Iowa.
