The coronavirus pandemic has exposed the shortcomings of the global health-care system, while also exposing how developed and developing world economies could demonstrate such unexpected responses. Tiny South Korea has managed to suppress the virus with mass testing and tracing. The US, meanwhile, has recorded the most deaths, while China has already vaccinated more than 1 million people before its leading vaccine effort has even been approved.With so many variables at play, Bloomberg has tried to develop a ranking for which countries fared the best during the coronavirus outbreak. While crunching the numbers, reporters asked questions like 'where were the...