"There's no other factor" Yes there is. In singapore the death rate was much higher until covid moved into foreign worker dorms, where everyone is younger on av

"There's no other factor" Yes there is. In singapore the death rate was much higher until covid moved into foreign worker dorms, where everyone is younger on average than the general population... You need to look at mortality rate by age group. South Korea also has relatively complete testing/tracing, you can find that data on the wikipedia page on covid19 in s. korea.