The 2.3% figure comes from here: https://jamanetwork.com/journals/jama/fullarticle/2762130?guestAccessKey=bdcca6fa-a48c-4028-8406-7f3d04a3e932&utm_source=For_T

The 2.3% figure comes from here: https://jamanetwork.com/journals/jama/fullarticle/2762130?guestAccessKey=bdcca6fa-a48c-4028-8406-7f3d04a3e932&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=022420 https://jamanetwork.com/journals/jama/fullarticle/2762130?gu... Note that they are looking at people who were diagnosed up through Feb 11th. It normally takes people 3 - 4 weeks to die from the disease, and it hasn't even been 3 weeks from Feb 11th, so it seems like this figure is designed as a lower bound.