Science Health & Safety FDA Approves Experimental Zika Screening For Blood Donations 4:27pm March 31, 2016 health care Science Health Share URL copied to clipboard! Copyright 2016 NPR. To see more, visit NPR. 300x250 Ad More All Things Considered National You can sword-fight at this club. But no politics allowed Arts National In 'Wicked: Part I', Cynthia Erivo defies gravity — and convention — as Elphaba 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate