By Scout Nelson
Scientists at the University of Nebraska–Lincoln has developed an innovative swine influenza vaccine that could improve disease protection in pigs while reducing costs. This new method focuses on creating a flexible and efficient vaccination system that benefits farmers and the livestock industry.
The research introduces a technique where DNA is enclosed inside tiny fat-like particles called lipid nanoparticles. These particles are injected into pigs, where they help trigger the immune system. Within seven to fourteen days, the pigs develop strong antibody responses, offering fast and reliable protection against influenza.
Traditional swine influenza vaccines often use inactive virus particles. While effective, they may sometimes worsen respiratory problems if pigs are exposed to a different virus strain later. In contrast, the Nebraska approach avoids this issue and helps prevent respiratory distress instead of increasing it.
This innovation is especially important because pigs are highly vulnerable to infections from multiple sources, including humans, birds, and other pigs. Due to this, pigs are often called “mixed vessels” for viruses. When different virus strains combine, they can create new and unpredictable forms of influenza, reducing the effectiveness of existing vaccines.
Another major benefit of this technology is its adaptability. Scientists can update the vaccine quickly by using specific non-infectious virus components. Unlike traditional methods, which require complex laboratory processes, this new system can produce updated vaccines in a much shorter time. The study was published in the journal npj Vaccines.
Research leader Hiep Vu stated, “My hope is that if we can use the same technology for multiple species, that will make this approach more like a versatile responder. You can have a standard vaccine platform that can be used for different species.”
The project involved collaboration with experts and diagnostic specialists who studied the health outcomes of vaccinated animals. This breakthrough not only supports the swine industry but may also be expanded to other livestock, including poultry.
Overall, this advancement represents a significant step toward safer, faster, and more affordable animal vaccines, helping farmers protect their animals and improve agricultural sustainability.
Photo Credit: istock-srdjan-stepic
Categories: Nebraska, Livestock, Hogs, Poultry