High lethality

First #covid19 wave was stopped by lockdown but still far more deadly than most severe Influenza wave.

Note: #covid19 wave infected only about 5-15% needed for herd immunity, so any _full_ #covid19 epidemic would be another ten times more deadly

Source:https://t.co/2uVGlRgaNK pic.twitter.com/4Ai1Z6VeNe

— epsilon (@epsilon3141) April 29, 2020

That's almost 21,000 excess deaths in 46 days in NYC. The worst flu season of the last decade killed an estimated 80,000 people in the entire Unites States. It's quite possible that Corona will end up killing more people than that in NYC before the year is over.