Health Canada has declared that food derived from genetically engineered pigs resistant to a porcine virus is just as safe and nutritious to consume as conventional pork products. The regulatory body approved the use of pigs resistant to porcine reproductive and respiratory syndrome viruses (PRRSV) in food and livestock feeds, citing the devastating impact of these viruses on farmed pigs. Genus PLC and PIC Canada, Ltd. sought approval to introduce these gene-edited products to the market, emphasizing the benefits of increased resistance to PRRSV in pigs, including reduced illness, decreased antibiotic use, and enhanced animal welfare.
The resistant pigs developed by Genus PLC have already been authorized for food consumption in several countries, including the U.S., Brazil, Colombia, and the Dominican Republic. Health Canada stated that the company will not distribute these pigs until receiving regulatory approval in other significant markets. Notably, no special labeling will be required for food products from these PRRSV-resistant pigs due to Health Canada’s assurance of no health or safety concerns associated with their consumption.
In contrast to genetically modified salmon, which raised environmental concerns upon its approval years ago, the PRRSV-resistant pigs were created using CRISPR gene-editing technology, ensuring precise genetic modifications without introducing genetic material from other species. This marks the first commercial approval of a gene-edited animal in Canada. While acknowledging the potential benefits of PRRSV-resistant pigs, experts like Gwendolyn Blue from the University of Calgary highlight the ethical and regulatory considerations surrounding gene editing, particularly the need for transparent communication with the public and ongoing review of labeling requirements.
Genus PLC explained that the process of breeding PRRS-resistant pigs involved eliminating a specific gene segment crucial for the PRRS virus to infect the animals. Health Canada and Genus PLC have committed to maintaining transparency and informing the public when these pigs enter the Canadian market. The utilization of CRISPR technology extends beyond agriculture, with recent applications in personalized gene therapy for rare genetic diseases, showcasing the evolving landscape of genetic advancements in both food production and healthcare.
