Overnight closing needed to clean NYC subway, says MTA chief
Inside NYC's ghost trains running empty each night for COVID cleaning
What the 'Invisible' People Cleaning the Subway Want Riders to Know - The New York Times
Closing time: Subway disinfecting exposes challenges for MTA and New York's homeless
Closing New York subway will have 'devastating' impact on homeless, experts warn, New York
What Closing the NYC Subway for Covid Cleaning Really Looks Like - Bloomberg
A Doctor Photographs Coronavirus Crisis in a NYC Hospital
What Closing the NYC Subway for Covid Cleaning Really Looks Like - Bloomberg
As NYC subways prepare for disinfecting, homeless will have to find alternate refuge - ABC News