Before revision:  Across the 10 countries with most COVID-19 deaths as of April 17 , 2020, our estimates suggest that the total number of infected is approximately 4 times the number of  ]  confirmed cases.
After revision:  Across the 10 countries with most COVID-19 deaths as of May 13 , 2020, our estimates suggest that the total number of infected is approximately 4 times the number of ] confirmed cases.