I'm not sure what physicians per capita has to do with the quality of their healthcare system and research. Is Bhutan the world leader in agriculture? They have more farmers per capita than anywhere in the world.
USA, by comparison, has 1,861 deaths per 1M population. They are one of the worst 20 countries.
Their resistance about importing vaccines can be debated, and may not reflect the quality of their health care, being mostly a political decision.
Where are you getting this number from? Any numbers coming from the Cuban government have to be treated as unreliable, as it is common practice to restrict doctors from what can be reported, unless they want to lose their license.
Governments with the same governance structure as Cuba (Vietnam, China) have been achieving even better numbers, despite lifting all measures and being full of foreigners. Because of this I expect actual evidence the data is false.
> Cuba’s reaction to the coronavirus threat was swift. A “prevention and control” plan, prepared in January 2020, included training medical staff, preparing medical and quarantine facilities, and informing the public (including tourism workers) about symptoms and precautions. So, when the first three reported cases were confirmed on March 11, arrangements were in place to trace and isolate contacts, mobilise medical students for nationwide door-to-door surveys to identify vulnerable people and check for symptoms, and roll out a testing programme.
[1] https://theconversation.com/coronavirus-response-why-cuba-is...
China alone has 7.
There's 18 vaccines already authorized for use in various places around the world. https://en.wikipedia.org/wiki/COVID-19_vaccine#List_of_autho...
https://www.businessinsider.com/china-vaccines-questioned-af...
China may have 7, but are they as effective as they claim?
Either way, there's 11 other vaccines in use that aren't Chinese, still more than 5.