The Swine Disease Eradication Center is proud to present another episode of “Processing the Litter-ature”: a podcast in which peer-reviewed papers are docked, clipped and supplemented with a field perspective.
Mark Schwartz and Dr. Brad Leuwerke discuss “Detection of porcine reproductive and respiratory syndrome virus type 2 in air emissions from grow-finish barns”
This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.
Today’s Science Page is a breakdown of a recent study done by Julia P. Baker, Albert Rovira, and Kimberly VanderWaal of the University of Minnesota, in which they studied PRRSV-2 re-breaks and how the virus changed over time.
Continue reading “Repeat offenders: PRRSV-2 clinical re-breaks from a whole genome perspective”By Kim VanderWaal, Ph.D., University of Minnesota
For those outside the pig world, it comes as a surprise that a disease affecting pigs, PRRSV-2, is one of the most sequenced viruses in the world. But those inside the pig world are unsurprised, because they know that the way sequence data is utilized in swine health management is unparalleled by human medicine. If you, as a human, get infected with the common cold, you are unlikely to even get a diagnosis, let alone will the doctor request a genetic sequence for your particular virus to make decisions about care or treatment. However, that is exactly what happens when farms break PRRSV-2: the genetic sequence of the virus is often used by animal health professionals for disease monitoring and management.
Continue reading “Surprising but true: PRRSV is one of the most sequenced viruses in the world”The Swine Disease Eradication Center is proud to present another episode of “Processing the Litter-ature”: a podcast in which peer-reviewed papers are docked, clipped and supplemented with a field perspective.
Drs. Kim VanderWaal and Jose Angulo discuss “Predicting Potential PRRSV-2 Variant Emergence through Phylogenetic Inference”.
Rapid evolution, molecular surveillance of porcine reproductive and respiratory syndrome virus.
By Kim VanderWaal, Nakarin Pamornchainavakul, Cesar A. Corzo, Mariana Kikuti, Albert Rovira and Igor Paploski, University of Minnesota
When talking to practitioners, they will tell you that porcine reproductive and respiratory syndrome control feels like a moving target. Despite ever-growing investments aimed at preventing between-farm spread, PRRS incidence at the national scale remains relatively steady year-over-year. However, underneath this apparent steady-state, epidemic-like spread events occur every few years with the emergence of novel genetic variants (Figure 1). For instance, the Lineage 1A 1-7-4 virus (blue line) emerged in ~2014 and rapidly spread throughout the country.
Continue reading “Chasing a moving target”