Not a viable comparison to covid-19. The polio fatality rate was much higher among a smaller population of infected which means the virus/disease which inflicted people was far more virulent.
The mortality rate for acute paralytic polio ranges from 5–15%. The paralysis can progress for up to one week. Permanent weakness is observed in two-thirds of patients with paralytic poliomyelitis. By 30 days, most of the reversible damage will have disappeared, although some return of function can be expected up until nine months.