Man receives genetically modified pig heart.

[Catherine]

I have a bit of an update on this story. The man died after 45 days. Was it really worth a pigs death for 45 days of life?

Also, a contributing factor was a pig virus that was present in the pig's heart.

https://www.nytimes.com/2022/05/05/healt...virus.html

Every species, every individual has viruses. Cross species transplants risk cross species movement of viruses. Who know what the consequences could be.
In this case, because transplant patients are on immunosuppressants, a virus that the pig lived with was enough to kill the human who got his heart.
This was not a random pig's heart. It was one specially bred for transplant to humans. 
I see a lot of medical resources going into a line research that has a lot of inherent problems.
It is not a direction we should be going. We should be looking for better ways to treat people, ways that would have more success and fewer ethical issues.