National Health & Safety Some Employers Want Proof, Others Say Workers Can Just 'Attest' To Being Vaccinated 4:27pm August 06, 2021 by Yuki Noguchi Business Health Medical Treatments National Share URL copied to clipboard! Copyright 2021 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered World News A U.S. doctor in Gaza wants President Biden to know 'we are not safe' National Pod Corner: 'Uncuffed' 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate