The second link is death per 100,000 people (not death of confirmed cases), that, for 18-45, is 14.21 per 100,000 (0.014%). There are confirmed cases of 1705.26 per 100,000 for 18-45. Thus, the death for 18-45 over confirmed cases is 0.83%, much higher than flu for 18-49, which is 0.02%: https://www.cdc.gov/flu/about/burden/2018-2019.html. Noted that the new antibody tests showed much higher cases than the confirmed cases. But the 0.01% number you cited is wrong. Please fix.