An employee deliver buns to a customer through a ramp from the restaurant counter at a store, as the country is hit by an outbreak of the novel coronavirus, in Beijing, China February 12, 2020.

A man wearing a mask to prevent contracting the coronavirus walks on a zebra crossing in Seoul, South Korea, February 20, 2020.

People wearing face masks dance at a park, following an outbreak of the novel coronavirus in the country, in Beijing, China February 21, 2020.

A man wears a face mask on the Trocadero esplanade in front of the Eiffel Tower in Paris, France, January 25, 2020, as France confirmed three cases of the new coronavirus.

A woman wears a face mask during parliamentary elections at a polling station in Tehran, Iran February 21, 2020. Nazanin Tabatabaee/WANA (West Asia News Agency) via REUTERS.

A street cleaner wearing a face mask sanitizes trash cans at a sidewalk, as the country is hit by an outbreak of the new coronavirus, in Beijing, China February 19, 2020.

Iraqi medical staff check passengers' temperature, amid the new coronavirus outbreak, upon their arrival at Najaf airport, Iraq February 20, 2020.

People wearing face masks take a picture with a mobile phone outside Rafik Hariri hospital, where Lebanon's first coronavirus case is being quarantined, in Beirut, Lebanon February 21, 2020.

A man wearing a mask to prevent contracting the coronavirus rides on his motorbike past a branch of the Shincheonji Church of Jesus the Temple of the Tabernacle of the Testimony (not pictured) in Daegu, South Korea February 21, 2020.

Worker Wang Fu wearing a face mask sprays disinfectant at an apartment's lobby in a residential compound, as the country is hit by an outbreak of the novel coronavirus, in Beijing, China February 21, 2020.

Sanitation workers disinfect a residential compound, as the country is hit by an outbreak of the novel coronavirus, in Bozhou, Anhui province, China February 18, 2020. China Daily via REUTERS.

Shanghai Ballet dancers wearing masks practise in a dance studio in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 20, 2020. Picture taken February 20, 2020.

People wearing protective masks wait for checking their temperature in an Apple Store, in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 21, 2020.

People wearing face masks look for products at a supermarket, as the country is hit by an outbreak of the new coronavirus, in Beijing, China February 19, 2020.

A health worker sprays disinfectant inside a Vietnam Airlines airplane to protect from the recent coronavirus outbreak, at Noi Bai airport in Hanoi, Vietnam February 21, 2020.

A worker installs plastic film to separate the front seats from the back, inside a vehicle for a car-hailing service as the country is hit by an outbreak of the novel coronavirus, in Taiyuan, Shanxi province, China February 14, 2020. cnsphoto via REUTERS.

A child wearing a face mask rides a smart self-balancing scooter on a street, as the country is hit by an outbreak of the novel coronavirus, in Beijing, China February 18, 2020.

People wear face masks and plastic raincoats as a protection from coronavirus at Shanghai railway station, in Shanghai, China February 17, 2020.

A man wearing a face mask rides an escalator inside a shopping mall, following an outbreak of the novel coronavirus, in Beijing, China February 12, 2020.

A man wearing a mask to prevent contracting the coronavirus rides on a subway in Seoul, South Korea, February 20, 2020.

A man and a boy wear masks to prevent contracting a new coronavirus at Myeongdong shopping district in Seoul, South Korea, February 20, 2020.

Women clean a classroom to protect against the recent coronavirus outbreak, in preparation for students' return to school in Hanoi, Vietnam February 15, 2020.

A man wears a mask outside KFC at a main shopping area as the country is hit by an outbreak of the new coronavirus in downtown Shanghai, China February 21, 2020.

A resident wears a makeshift protective face shield at a residential compound in Wuhan, the epicentre of the novel coronavirus outbreak, Hubei province, China February 21, 2020.

A child wearing a face mask plays a game with a man at a park, following an outbreak of the novel coronavirus in the country, in Beijing, China February 21, 2020.

A couple wears masks to protect against an outbreak of a coronavirus as they take a photo on Valentine’s Day in Hong Kong, China February 14, 2020.

A couple wearing masks to protect against an outbreak of a coronavirus as they ride on a carnival on Valentine’s Day in Hong Kong, China February 14, 2020.

People wearing face masks play table tennis at a park, following an outbreak of the novel coronavirus in the country, in Beijing, China February 21, 2020.