PRRS – Page 2 – Swine in Minnesota

How CVM researchers are tackling a devastating swine virus

Dr. Corzo presenting on a stage to a crowd — Cesar Corzo, director of the Morrison Swine Health Monitoring Program, presents PRRSV research at a conference.

For decades, veterinarians and producers have struggled to contain porcine reproductive and respiratory syndrome virus (PRRSV).

The highly pathogenic swine virus mutates rapidly, making control a moving target. Pigs infected with PRRSV suffer from high morbidity and mortality rates. Even those who live endure difficulty breathing, fever, and loss of appetite. Today, the disease affects as many as half of all swine breeding farms in the United States. It’s the most costly issue the swine industry faces.

Recombinants Are the Key Drivers of Recent PRRSV-2 Evolution

The Schroeder’s lab at the University of Minnesota College of Veterinary Medicine recently published a brief report in the journal Pathogens regarding a likely cause of Porcine Reproductive and Respiratory Virus type 2 evolution.

PRRSV variants under monitoring

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.

Assessment of PRRSV Trailer Contamination at the Harvest Facility

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, University of Minnesota researchers Lucas Ferreira, Mark Schwartz, Marie Culhane, and Cesar A Corzo share preliminary findings from their study on transport biosecurity.

Practical implications of PRRSV testing in pre-farrow and post-farrow sows using TOSC samples and their respective litters

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 bring you a summary of research on tonsil oral scrubbing done by Peng Li, Isadora Machado, Thomas Petznick, Emily Pratt, Jinnan Xiao, Chris Sievers, Paul Yeske, Swami Jayaraman, Daniel C. A. Moraes, Guilherme Cezar, Mafalda Mil-Homens, Hao Tong, Kelly Will, Darwin Reicks, Jason Kelly, Onyekachukwu H. Osemeke, Gustavo S. Silva and Daniel C. L. Linhares.