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 Sports National Katie Ledecky tells NPR about her plans for the Paris Olympics — and L.A. in 2028 Arts National Here are the events planned for the 150th Kentucky Derby by Sylvia Goodman 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate