CDC Director Robert Redfield says some previous flu deaths in US were misdiagnosed and actually due to COVID-19

This has me thinking, how long has COVID-19 been in the US? He doesn’t specify time-frame of those misdiagnoses, but could they have been from before 2020?

Makes things confusing in regards to where the hell this virus came from/how long has been around

h/t marcusjackson1995