https://ift.tt/2wwdHAe Did Federal Officials Really Question W.H.O. Tests for Coronavirus? Tests (Medical), Coronavirus (2019-nCoV), Laboratories and Scientific Equipment Dr. Deborah Birx said she did not mean to suggest the widely used diagnostic tests generated frequent false-positive results. BY DONALD G. MCNEIL JR. https://ift.tt/39ZECDN March 18, 2020 at 05:44AM