This 17 April 2020 video from the USA says about itself:
Frontline Medical Workers Protest New NYC Policy Demanding Doctor’s Notes When They Are Sick
A new policy at New York City’s public hospitals requires medical workers who call in sick to produce a doctor’s note. “We know that people just need a mental health day,” says Sean Petty, a registered nurse at a public hospital in the Bronx who is organizing a protest against the policy. “Thousands of us have been exposed. Health workers are the least tested group of people in this city.” Petty is a member of the board of directors of the New York State Nurses Association.