Workers assemble a temporary wall made of metal sheets outside a residential complex, to control visitors' access, as the country is hit by an outbreak of the new coronavirus, in Beijing, China February 1, 2020. REUTERS/Carlos Garcia Rawlins 

Workers ensemble a temporary metal-sheets wall outside a residential complex to control visitors' access, as the country is hit by an outbreak of the new coronavirus, in Beijing, China February 1, 2020. REUTERS/Carlos Garcia Rawlins 

The town sign of Starnberg is seen after Germany has declared its first confirmed case of the deadly coronavirus; a man from Starnberg, 30 kilometers southwest of Munich, has been confirmed as suffering from the virus, in Starnberg, Germany January 28, 2020. REUTERS/Michael Dalder 

The town sign of Starnberg is seen after Germany has declared its first confirmed case of the deadly coronavirus; a man from Starnberg, 30 kilometers southwest of Munich, has been confirmed as suffering from the virus, in Starnberg, Germany January 28, 2020. REUTERS/Michael Dalder 

A wheelchair is seen thorugh a window inside a nursing home in Vienna, Austria, October 9, 2018. REUTERS/Heinz-Peter Bader 

An Afghan boy plays with a sling outside his house at a hill top in Kabul, Afghanistan, February 20, 2017. REUTERS/Omar Sobhani TPX IMAGES OF THE DAY 

A picture shows Pooh the cat using his two bionic legs in Sofia's Central Vet Clinic, Bulgaria, January 31, 2017. Picture taken on January 31, 2017. REUTERS/Stoyan Nenov