I am quite frustrated with corona graphs in the news, since most reporters seem to have skipped math classes back then. For instance, just plotting the number of confirmed infections at the respective dates does not tell you anything due to the different time point of outbreak. So lets fix that first.
The values are smoothed using a moving average over four days. This numbers actually allow comparing how well the different countries are doing in their corona countermeasurements, regardless of the population size.
A significant increase of the fatality rate indicates that
However, the mortality rate is a better indicator of the influence of the pandepic on a countries society and economy - especially when the health-system is exhausted.