Coronavirus: What could help us return to normal? Experts say antibody testing could be key

How will we know when it’s safe to go back to work? To the movies? To Disneyland?
When can the devastated economy rumble back to life?
A key to getting those answers, epidemiologists say, is development of the type of simple, cheap blood test that a Little Saigon doctor has drawn official rebuke for offering.
Used properly — and widely — such “surveillance testing” could allow public health officials to understand how widespread infection is in individual communitie