Before revision:  Petersburg, where mortality rate for COVID-19 is the highest in the Russian Federation on Oct. 1 , 2020, every death for COVID-19 corresponds to 14.7 detected cases of COVID-19 in the population, while the corresponding number for the whole of Russia is 56.7 , suggesting limited detection of mild/moderate cases of COVID-19 in St.
After revision:  Petersburg, where mortality rate for COVID-19 is the highest in the Russian Federation on Oct. 1 , 2020, every death for COVID-19 corresponds to 15.7 detected cases of COVID-19 in the population, while the corresponding number for the whole of Russia is 56.7 , suggesting limited detection of mild/moderate cases of COVID-19 in St.