Three U.S. airports are now screening passengers from Wuhan, China, for coronavirus. Above: Public health officials hand out disease-monitoring information after performing thermal scans on passengers arriving from Wuhan at the international airport in Bangkok, Thailand.

Three U.S. airports are now screening passengers from Wuhan, China, for coronavirus. Above: Public health officials hand out disease-monitoring information after performing thermal scans on passengers arriving from Wuhan at the international airport in Bangkok, Thailand.

Three U.S. airports are now screening passengers from Wuhan, China, for coronavirus. Above: Public health officials hand out disease-monitoring information after performing thermal scans on passengers arriving from Wuhan at the international airport in Bangkok, Thailand.

Three U.S. airports are now screening passengers from Wuhan, China, for coronavirus. Above: Public health officials hand out disease-monitoring information after performing thermal scans on passengers arriving from Wuhan at the international airport in Bangkok, Thailand.