Porcine reproductive and respiratory syndrome virus is a major threat to pig production worldwide. The virus is constantly changing, with new variants appearing every year. Some of these new variants can spread more easily or have a greater impact on your herd’s health and productivity. An example is the emergence of a new PRRSV variant named 1C.5 (previously referred to as L1C 1-4-4, or 1-4-4) in late 2020. In the past, monitoring systems have had a difficulty identifying new variants like this quickly enough to allow for a rapid response, and they often focused on describing epidemics that had already happened.
Continue reading “PRRSV variants under monitoring”Tag: 1-4-4
Using swine interstate transport records as a predictor of pathogen spread across the USA
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.
Megan N. Thomas, Phillip C. Gauger, Amy L. Baker and Tavis K. Anderson from Iowa State University and the USDA demonstrate that interstate hog transport could predict the spread of PRRSV in this week’s science page!
Continue reading “Using swine interstate transport records as a predictor of pathogen spread across the USA”Do all PRRSV variants have the same level of infectivity?
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.
University of Minnesota researchers Marcello Melini, Mariana Kikuti, Montse Torremorell, Kimberly VanderWaal, Stephanie Rossow, Jerry Torrison, and Cesar Corzo share the results of a study conducted to measure the infectivity of different PRRSV variants.
Continue reading “Do all PRRSV variants have the same level of infectivity?”Tracing the evolutionary history of the novel PRRSV-2 L1C-1-4-4 variant
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.
This Friday we are looking at the PPRSv L1C-1-4-4 variant and comparing its evolution to other PRRSv strains, thanks to research by Nakarin Pamornchainavakul, Mariana Kikuti, Igor A. D. Paploski, Dennis N. Makau, Albert Rovira, Cesar A. Corzo, and Kimberly VanderWaal.
Continue reading “Tracing the evolutionary history of the novel PRRSV-2 L1C-1-4-4 variant”Experimental pig study confirms the high virulence of the recently emerged PRRSV 1-4-4 L1C variant strain
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.
In today’s Science Page we learn about the findings of a study conducted by researchers at Iowa State University inoculating pigs with the 1-4-4 L1C variant.
Continue reading “Experimental pig study confirms the high virulence of the recently emerged PRRSV 1-4-4 L1C variant strain”