Over a year ago, Washington and Havana embarked on rapprochement leading to eventual normalization of relations. Much attention has focused on spurring economic activity and expanding opportunities for American travel to Cuba. But many other onerous restrictions are still in place as a result of the US embargo and related policies. It turns out some of them threaten the lives of Americans, by placing obstacles in the way of Cuban biotech and other medical innovations already approved and in use in dozens of other countries. But not in the USA. So we are missing out on the possible health benefits of expanded cooperation with Cuba.