One of the largest hospital networks in New York has given its doctors an ultimatum: either help deal with the coronavirus crush, or stay home without pay.

At other hospitals, too, all hands are being called to deck. Neurosurgeons and cardiologists, orthopedic, dermatology and plastic surgery residents — all have been pulled into emergency rooms and intensive care wards. Receptionists who normally deal with billing are also being told they will be reassigned, to emergency rooms to help screen Covid-19 patients.