What’s certain is that the pig project was technically impressive and scientifically clever. Genus edited pig embryos to remove the receptor that the PRRS virus uses to enter cells. This project is scientifically similar to the work that led to the infamous CRISPR babies born in China in 2018. It’s going to save a lot of money if pigs are immune to the PRRS virus, which spreads quite easily, causing losses of $300 million a year or more in the US alone. Globally, people get animal protein mostly from chickens, with pigs and cattle in second and third place.