While American healthcare isn't perfect: there is no other country that is even remotely close to matching this. There are myriad reasons for this, but one of the main ones is that we are willing to pay the astronomical cost of R&D that no other country is.
https://www.nytimes.com/2024/05/06/health/sickle-cell-cure-first.html?unlocked_article_code=1.gk4.xzLw.1rp9ZIU_Rpnj&smid=url-share