This isn’t meant to be a discussion on the morality of the embargo, but the affects of the embargo ending for both countries. These affects can be political, economic, or social.
I was curious about that lung cancer treatment and found this Snopes article. Sounds like in Cuba it’s demonstrated that it can add several months to some people’s lives after they’re diagnosed with lung cancer. Phase II clinical trials are underway in the US as of last year, and preliminary results show particular success in combination with other existing treatments. They’ve expanded the trial to cover some other forms of cancer too