Omicron explosion spurs nationwide breakdown of services

New York City Sanitation Department workers use a front-end loader to to fill a salt spreader Friday at one of the Department's salt sheds in lower Manhattan. (AP Photo/Mary Altaffer)

Ambulances in Kansas speed toward hospitals then suddenly change direction because hospitals are full. Employee shortages in New York City cause delays in trash and subway services and diminish the ranks of firefighters and emergency workers. Airport officials shut down security checkpoints at the biggest terminal in Phoenix and schools across the nation struggle to find teachers for their classrooms.