In the United States, the number of confirmed cases is close to 4,000,000 and although approximately 500,000 tests are carried out daily, there are other factors that make it difficult to know the magnitude of the spread of the virus.
Why is it important to track down infections in the U.S.?
7/22/2020, 9:10:16 PM
In the United States, the number of confirmed cases is close to 4,000,000 and although approximately 500,000 tests are performed daily, there are other factors that make it difficult to know the magnitude of…