According to another article: https://www.usatoday.com/story/news/health/2022/01/10/human-pig-heart-transplant/9152951002/ https://www.usatoday.com/story/news/h

According to another article: https://www.usatoday.com/story/news/health/2022/01/10/human-pig-heart-transplant/9152951002/ https://www.usatoday.com/story/news/health/2022/01/10/human-... > Three genes were turned off that might otherwise have triggered an immediate immune rejection – the recognition of a pig organ as coming from a different species. Six human genes were added to prevent blood from coagulating in the heart, improve molecular compatibility and reduce the risk of rejection. > One final gene was turned off to keep the pig from growing too large. So they actually did make the pig a tiny bit human.