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Huskers aim to crack code of major swine virus

Two University of Nebraska-Lincoln scientists have received a $627,000 federal grant to study a viral disease posing a significant threat to the swine industry worldwide. 

Porcine reproductive and respiratory syndrome virus is widespread, causing reproductive failure in sows and major respiratory illness in pigs of all ages. In addition, the virus modulates the pig’s immune system, making the animal more susceptible to other infectious diseases. The costs to the U.S. swine sector from PRRSV annually total an estimated $1.1 billion. 

Hiep Vu, associate professor of animal science, is the co-director of the research project, funded by a three-year grant from the U.S. Department of Agriculture. The other co-director is Sarah Sillman, assistant professor with Nebraska’s School of Veterinary Medicine and Biomedical Sciences and the Nebraska Veterinary Diagnostic Center. 

The project will examine how PRRSV infects swine macrophages, the immune cells that recognize, engulf and destroy harmful intruders, including viruses and bacteria. 

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In this special episode celebrating International Women's Day of The Swine it Podcast Show Canada, we bring Dr. Isabela Bez, a veterinarian and PhD student in Brazil, who explains how temperature and light regimes influence sow reproductive performance. She discusses seasonal infertility, climate adaptation, and why environmental monitoring inside barns is critical for herd efficiency. The episode highlights practical management strategies to reduce reproductive losses and improve outcomes. Listen now on all major platforms. "Environmental factors are actually very important on sow reproduction, and sometimes these are the factors that producers tend to not pay attention." Meet the guest: Dr. Isabela Bez / isabela-cristina-cola%c3%a7o-bez-1753381b0 is a veterinarian and PhD student in Animal Science at Pontifical Catholic University of Paraná (PUCPR), Brazil. Her work focuses on swine reproduction, nutrition, and animal welfare, with strong expertise in environmental effects on sow performance. She collaborates with international farms and research groups to improve reproductive efficiency through applied science.