I think South Korea death rates are lower then any where because they tested more. Just like the flu if a person doesn't get tested or treated they don't count in stats. South Korea had drive thru testing stations.plus a good health system
Plus most of their cases were tied directly to a cult, not the general populace and thus was more easily traceable.
Coronavirus: South Korea sect leader to face probe over deaths
Lee Man-hee, 88, is accused of hampering efforts to contain the virus.
www.bbc.com