First time win: A University of Minnesota student takes the Morrison Swine Innovator Prize

2025 Morrison Swine Innovator Prize winner Kaydance Hinn (right) and Dr. Perle Zhitnitskiy, CVM professor and coordinator of the competition. 

St. Paul, Minn.—Kaydance Hinn, a first-year student at the University of Minnesota College of Veterinary Medicine, received the 2025 Morrison Swine Innovator Prize, an award given to veterinary students who want to make a difference in swine health and production. 

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Paradigm Shifts and Practical Solutions: Highlights from the 2025 Allen D. Leman Swine Conference

The 2025 Allen D. Leman Swine Conference brought together more than 700 professionals from the international swine community in St. Paul, Minnesota this past weekend, delivering exactly what attendees have come to expect: cutting-edge science, practical solutions, and challenges to conventional thinking.

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See you at the 2025 Leman Swine Conference!

There is no Science Page this week because our team is busy getting ready for the Leman Swine Conference, which starts tomorrow, Saturday, September 20!

Not registered? It’s not too late: walk in registrations are welcome! Join us at the St. Paul RiverCentre for thought-provoking keynotes, a program full of breakouts that cover a wide range of topics important to swine professionals, delicious food and great company!

Does vaccination influence PRRSV evolution?

RFLP 1-7-4, variant 1C.5 (aka L1C-4-4), or 1C.5.32 – these are some of the infamous PRRSV-2 viruses that have caused massive production losses over the past decade. Regardless of how people named or classified them, one thing these epidemic waves had in common was that they were caused by genetic variants that were novel at the time, and vaccination, especially widely used modified-live virus commercial vaccines, failed to mitigate their spread. Many viruses are in an arms-race with host immunity, evolving to evade host immune mechanisms. The less-than-perfect available immunization strategies combined with the expanding genetic diversity seen for PRRSV-2 raises the question:

Does the use of MLV vaccines play a role in shaping wild-type PRRSV-2 evolution, potentially driving the emergence of new variants?

A newly published paper from the University of Minnesota1 attempted to answer that question in a controlled experimental setting to compare the evolution of PRRSV-2 through pig-to-pig infection chains under different MLV vaccination conditions.

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The UMN Swine Group at the Minnesota State Fair

Maria Pieters (left) stands next to Montserrat Torremorell (right) who's holding a piglet.
Maria Pieters (left) stands next to CVM colleague Montserrat Torremorell (right) holding a piglet.

For roughly 20 years, University of Minnesota College of Veterinary (CVM) students and faculty have volunteered at the extremely popular CHS Miracle of Birth Center, a collaboration between the University, FFA, and Minnesota Veterinary Medical Association.

Every year, more than 200 animals including calves, lambs, piglets and chicks are born (or hatched) there over the course of the fair’s 12 days.

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