Los Angeles Mayor Eric Garcetti, in an image provided by his office, puts on a face mask during a news briefing on April 1.

This still image taken from a live stream provided by Office of Mayor Eric Garcetti showing Los Angeles Mayor Garcetti displaying putting on a protective face mask during his daily news conference in Los Angeles on Wednesday, April 1, 2020. Garcetti has recommended that the city’s 4 million people wear masks when going outside amid the spreading coronavirus. (Office of Mayor Eric Garcetti via AP)