More numbers from CDC/US :
35% are asymptomatic.
0.4% fatality rate for people that develop symptoms.
https://www.cdc.gov/coronavirus/2019-ncov/hcp/planning-scenarios.html
These numbers match Sanford's number from last month. Use it to understand how much dangerous the disease is.
A good homework might be to calculate how many would die if BD goes for herd immunity vs how many die every year naturally.
I calculated those numbers, can't show it here for obvious reason.