Purely anecdotal but I was in Costa Rica in September of 2020. I was struck by the difference and better preparedness compared to the US.

Every store and place of business had not only signs and hand sanitizer at the entrance, nobody was in stores without masks, and I drove by a line of people over half a mile long and 3-4 people deep, of people waiting in line for hours to get vaccinated.

The taxi driver told me there was some program to provide vaccines to CR and what he did was stay in line and hold the place for his family for awhile and then they would wait in line allowing him to work for awhile. Overall they took public safety measures much more seriously than the US, but I was in a wealthier urban area, don’t know how it was in the rural areas.