Out of 111,000 inmates, 31 were hospitalized and none died. Is there a small city with equivalent population where approximately the same numbers held?
I very much doubt there's a small city with total gender segregation, people living in large buildings they're not permitted to leave, and single-source universal healthcare.
(That's what makes it such a good observational study population; a whole bunch of variables are controlled away by default.)
(That's what makes it such a good observational study population; a whole bunch of variables are controlled away by default.)