RFLP – Swine in Minnesota

Is the PRRSV isolate obtained in cell culture the same as the virus present in the original clinical sample?

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 the Veterinary Diagnostic Laboratory and the Production Animal Medicine team at Iowa State University look into whether cell culture isolates and viruses in the associated clinical samples are sequence equivalent or not.

What are PRRS lineages?

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.

Following up from last week’s article, Igor Paploski, Mariana Kikuti and Cesar Corzo dig into what PRRS linages are and give background on Lineage 1, and the sublineages that further classify the virus.

PRRS RFLP, what is it and how we use them?

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, the University of Minnesota (Mariana Kikuti, Igor Paploski, Marcello Melini, and Cesar Corzo) explains RFLPs, how they are used today and some of their pitfalls.

Updated epidemiological curve of cases associated with the new Lineage 1C RFLP1-4-4 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 the Morrison Swine Health Monitoring Project shares an update on their continued monitoring of PRRSv cases associated with the linage 1C, RFLP 1-4-4 variant.

PRRSv RFLP pattern changes in the USA

Key Points

MSHMP continues monitoring PRRSv RFLP patterns associated with outbreaks in participant systems.
The proportion of reported 1-7-4 outbreaks decreased significantly from July 2018 compared to that from January 2017 to June 2018.
The proportions of reported 1-8-4, 1-4-4, 1-3-4, 1-10-2, and 1-1-2 outbreaks have not changed significantly in recent years.