The company was founded by Dr John M. Fairbrother and Dr Eric Nadeau as a spin-off from the Faculté de médecine vétérinaire at the Université de Montréal. Prevtec microbia develops vaccines and drug technologies that target bacterial diseases in food animals, providing sustainable solutions that improve animal health, production, and food safety. Their products release enterotoxins that trigger the transport of fluid and electrolytes from the body to the animal's intestines, leading to diarrhoea and dehydration, which allows clients to use antibiotics more effectively.