Certainly vaccines and better treatment/understanding contributes to this number, but it's undeniable that the virus is weakening as they usually do over time
First wave (most deadly) lower case counts, highest mortality. Second wave, high case count, lower mortality rate, third wave (Delta variant), high case count, negligible mortality.

First wave (most deadly) lower case counts, highest mortality. Second wave, high case count, lower mortality rate, third wave (Delta variant), high case count, negligible mortality.
