Tens of millions of serology tests, which analyze blood samples for antibodies to COVID-19, could be available in the United States by May, if the currently available tests are validated, HHS Assistant Secretary for Health Brett Giroir said during a White House press briefing Monday (April 6). The White House Coronavirus Task Force, under the leadership of Coronavirus Response Coordinator Deborah Birx, is in talks about how to prioritize testing. On April 1, FDA granted Cellex Inc. the first emergency...