Small Pests, Bigger Threats: Flies and Gnats Spread Swine Rotaviruses and Sapovirus

Aug 02, 2023

Annoying. Bothersome. Irritating. Inconvenience. Pest. No matter how you describe Musca domestica, aka the house fly, and its friend the gnat, one thing's for sure - they are a nuisance and pose a threat to your swine herd.

Everyone knows the small stature of flies and gnats and their ability to fly allows them to easily enter and exit barns and vehicles while bringing with them viral, bacterial and parasitic pathogens. For the first time ever, a study led by Allison Knox of the Walcott Veterinary Clinic in Walcott, Iowa, shows the ability of house flies and gnats to transmit rotavirus and sapovirus in swine nurseries.

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Video: ASF Control Lessons - Dr. Mary-Louise Penrith

In this episode of The Swine it Podcast Show Canada, Dr. Mary-Louise Penrith, Extraordinary Professor at the University of Pretoria, shares what decades of work have revealed about ASF control. She explains why vaccine development remains difficult, how human activity and food waste drive disease spread, why resistant pig populations are an important research area, and how strict biosecurity with the right disinfectants can help to stop transmission. Listen now on all major platforms!

"It's really a very human-driven disease because people move pigs, decide how they're raised, how they're sold, and good biosecurity can do anything to ensure control."

Meet the guest: Dr. Mary-Louise Penrith / mary-louise-penrith-2b12bb42 is an Extraordinary Professor in the Department of Veterinary Tropical Diseases at the University of Pretoria, South Africa. A veterinarian and internationally recognized researcher, she has dedicated decades to African swine fever epidemiology, control, and pig health, supporting FAO and WOAH initiatives while advancing research and education. Listen to Dr. Mary-Louise Penrith on the Swine Health Blackbelt Podcast, available on all major platforms.