Supplementary Data by Aug. 6, 2020In the following table, for each country, we break down the data for
Phase I or Phase II. The column “case_pre” is the data of confirmed
cases before June 1 and the column “case_post” is the data of
confirmed cases after June 1. Accordingly, the column of
“death_pre” is the infection death before June 10 and the column
“death_post” is the infection death after June 10. For the data
after June, the end time of our data is Aug. 6, 2020. We define two
raw case fatality rates as\(r_{1}\)=\(\frac{death\_pre}{case\_pre}\) and\(r_{2}\)=\(\frac{death\_post}{case\_post}\). In addition, we
calculate the reduction in case fatality rate as reduction=\(\frac{r_{1}-r_{2}}{r_{1}}\) and place the result in the last
column.
Table 1. The data breakdown for Phase I and Phase II