The mortality rate of a disease is determined by dividing the number of people who’ve died of it by the number who have been infected by it, the number dead by the wuhan we know to be approximately 90,000 Americans (padding corrected of course), the denominator unknown (do you remember when that word was used constantly in the early days of the pandemic?), or rather it’s unannounced, not mentioned because it’s probably by now up to about 120,000,000 Americans who’ve been infected.