Travel chaos erupts as Italy quarantines north to halt virus
https://apnews.com/f3be69cc2cf55f74a35118c557ad8461
This article shows some of the problems with trying to lock down an area to prevent the virus from spreading. Would probably be very difficult to lock down any large area in the US.
"...Students at the University of Padua in northern Italy who had been out at bars on a Saturday night saw the reports on their phones and rushed back to grab their belongings and head to the train station. Hundreds of passengers, some wearing face masks and rubber gloves, crammed onto the last local train leaving Padua at 11:30 p.m, sitting on their suitcases in the aisles. No conductor came by to check tickets.
“I read two hours ago that they may be putting out an urgent decree putting Padua in the red zone ... so I decided to go earlier,” said student Roberto Pagliara, heading to his hometown of Puglia in southern Italy. ..."