March 18, 2020

A man walks toward a coronavirus warning sign outside a medical center in Manchester, Britain.

A sign directs visitors to a nearby hand-washing station in front of empty market stands at the Pike Place Market, March 17, 2020, in Seattle, Washington.

A sign asking customers to only use contactless payment methods is seen in a pub in Liverpool, Britain, March 17, 2020.

Women wearing a face mask are seen in a window of a temporarily closed store in Seoul, South Korea, March 18, 2020.

Signs reading "Corona is also what we make out of it" (top) and "Imagine this is Corona and nobody looks at panicked" are seen in Stuttgart, southern Germany.

Shoppers enter a grocery store near a sign requesting social distancing, following reports of coronavirus cases in the area in Seattle, Washington, March 17, 2020.

Sanitized pens are seen in cups on the bar at O-Ku Sushi DC restaurant at Union Market in Washington, March, 17, 2020.

Medical worker Miriam Fuentes gives a patient directions at a drive-through COVID-19 testing station for University of Washington Medicine patients, March 17, 2020, in Seattle, Washington.

A motorway sign warning drivers about EU traffic restrictions is seen on the M56 motorway near Liverpool, Britain.

A sign is seen on the door of a Joe and The Juice juice bar and coffee shop, which remains open for takeaway orders, in San Francisco, California, March 17, 2020.

A man walks past graffiti on a wall of a closed McDonald's restaurant, reading "Corona Cola light," in Nantes, western France, March 17, 2020 while a widespread lockdown comes into effect to help slow the COVID-19 outbreak in the country.

A sign that reads "FACEMASK AVAILABLE" is taped to a mannequin outside Trade Linker International at Union Market in Washington, D.C., March, 17, 2020.