With testing capacities of 20,000 tests daily, it [South Korea] has the largest and most accurate coverage compared to all other countries as of writing. The low false-negative rate in detecting COVID-19 infections leads to the lowest death rate compared to all other countries (0.84) with major case count
Note that South Korea’s reported (naive) CFR is at >1% by now. It’s possible that the authors adjusted for the fact that most of South Korea’s cases were still active at the time of writing (about 55-60% of cases are still active now, I think), but I don’t see this in this paper. It probably doesn’t make a huge difference, but still relevant that this could cause the estimates to be a bit too low.
From the paper:
Note that South Korea’s reported (naive) CFR is at >1% by now. It’s possible that the authors adjusted for the fact that most of South Korea’s cases were still active at the time of writing (about 55-60% of cases are still active now, I think), but I don’t see this in this paper. It probably doesn’t make a huge difference, but still relevant that this could cause the estimates to be a bit too low.