litter – Swine in Minnesota

PRRSV2 Viral Diversity within a Farrow-to-Wean Farm Cohort Study

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 this week’s science page researchers Mariana Kikuti, Carles Vilalta, Juan Sanhueza, Nakarin Pamornchainavakul, Jessica Kevill, My Yang, Igor A. D. Paploski, Tatiana Lenskaia, Nkechi M. Odogwu, Ross Kiehne, Kimberly VanderWaal, Declan Schroeder and Cesar A. Corzo share results of further analysis a 2020 study using whole genome sequencing to assess PRRSv diversity within and across litters.

Understanding PRRSv diversity at the pig and litter level

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 week, Dr. Mariana Kikuti from the MSHMP team is sharing results from a study using whole genome sequencing to assess PRRSv diversity within and across litters.

Key points

Viral diversity within the piglet population is generally small, but higher diversity was found in ORFs 4 and 5a.
Within animal consensus changes were observed in a period as short as 2 weeks, which means piglets might be going to the GF sites with different viruses than the ones identified closer to farrowing.