On Monday, a recommended curfew takes effect in the city of Boston. Mayor Marty Walsh is asking city residents to return home each day — if they go out at all — by 9 p.m.

It's the latest effort to slow the spread of the coronavirus, as Walsh warns a surge in cases could be coming.

For the latest on the coronavirus locally, WBUR reporter Callum Borchers joined Morning Edition host Bob Oakes.