Health Canada has declared that food derived from genetically engineered pigs resistant to a porcine virus is just as safe and nutritious as conventional pork. The authorities approved the use of pigs resistant to porcine reproductive and respiratory syndrome viruses (PRRSV) for food and livestock feed, emphasizing the benefits of improved resistance to these harmful viruses. Genus PLC and PIC Canada, Ltd., sought approval to introduce these gene-edited products to the market, aiming to enhance animal welfare, reduce antibiotic use, and ensure a stable and sustainable food supply.
The resistant pigs, already authorized for food consumption in several countries, including the U.S. and Brazil, were developed using CRISPR gene-editing technology. Unlike genetically modified salmon, these pigs do not contain genetic material from other species, making them a landmark approval for gene-edited animals in Canada. Health Canada confirmed that no special labeling is required for products from these PRRSV-resistant pigs.
While acknowledging the potential benefits of these pigs, some experts raise ethical and regulatory concerns, including the need for clear safety assessments and updated biotechnology regulations. One major issue is the lack of mandatory labeling for these products, which is currently under review. Genus PLC explained that by removing a portion of a specific gene necessary for PRRSV infection, they were able to breed pigs resistant to the virus.
Health Canada and Genus PLC have committed to transparent communication with the public once these pigs enter the Canadian market. The use of CRISPR technology extends beyond agriculture, with applications in personalized gene therapy for rare genetic diseases like sickle cell disease and thalassemia. In recent years, significant advancements have been made in gene therapy treatments, marking a new era in genetic engineering and healthcare.