It really depends on the organ. Kidneys stand out as the most successful organs for transplantation, even in allotransplantation (between humans) so it makes sense that they are working well in xeno as well.
Kidneys are not as vascularized as some other organs (heart or lung) which probably helps a lot.
Heart and lung xenotransplantation are still a ways off and a lot of basic research is still needed to make them work.
My mom worked with eGenesis on pig xenotransplantation, particularly lung.
Here are some links if you'd like to donate to the International Xenotransplantation Association:
Kidneys are not as vascularized as some other organs (heart or lung) which probably helps a lot.
Heart and lung xenotransplantation are still a ways off and a lot of basic research is still needed to make them work.
My mom worked with eGenesis on pig xenotransplantation, particularly lung.
Here are some links if you'd like to donate to the International Xenotransplantation Association:
https://donate.tts.org/agnes/
https://tts.org/74-ixa/889-ixa-in-memoriam-agnes-marie-azimz...