Thursday , November 26 2020
Home / Tag Archives: blood samples

Tag Archives: blood samples

US begins blood tests for coronavirus immunity: reports

Washington, United States | AFP | The United States has begun taking blood samples from across the country to determine the true number of people infected with the coronavirus, using a test that works retrospectively, according to reports. The new tests are based on serological surveys, which differ from the nasal swabs used to determine …

Read More »