Two shoppers in surgical masks walk past empty supermarket shelves, usually stocked with toilet paper and kitchen rolls in Hong Kong, China on February 12, 2020. Panic is growing in the city as the authorities confirm the 50th case of the Covid-19 coronavirus. (Photo by Geovien So/SOPA Images/Rex Features/Shutterstock)





Medical staff work in the negative-pressure isolation ward in Jinyintan Hospital, designated for critical COVID-19 patients, in Wuhan in central China's Hubei province Thursday, February 13, 2020. China on Thursday reported 254 new deaths and a spike in virus cases of 15,152, after the hardest-hit province of Hubei applied a new classification system that broadens the scope of diagnoses for the outbreak, which has spread to more than 20 countries. (Photo by Chinatopix via AP Photo)





A man waves to passengers of the MS Westerdam, owned by Holland America Line, docked at the port of Sihanoukville, Cambodia, Friday, February 14, 2020. Hundreds of cruise ship passengers long stranded at sea by virus fears cheered as they finally disembarked Friday and were welcomed to Cambodia. (Photo by Heng Sinith/AP Photo)





Military medics arrive at Tianhe International Airport in Wuhan, central China's Hubei Province, February 13, 2020. Ordered by the Central Military Commission, 11 transport aircraft of the People's Liberation Army Air Force Thursday sent medics and supplies provided by the armed forces to virus-hit Wuhan, capital of Hubei Province. This was the first time for China's domestically developed large transport aircraft Y-20 to take part in non-military action. It was also the first time for the Air Force to send large and medium transport aircraft on active service to carry out urgent air transport tasks on a large scale. (Photo by Reuters/China Stringer Network)





A health official wearing a protection suit and a face mask waits for passengers at a cruise ship terminal in Port Klang, Malaysia, Thursday, February 13, 2020. COVID-19 sickened tens of thousands of people in China since December, and more than 170 cases have been confirmed on another cruise ship, the Diamond Princess, which made stops in Hong Kong and other ports before arriving in Japan last week. (Photo by Vincent Thian/AP Photo)





Matt Raw, a British national who was repatriated from the Chinese city of Wuhan amid the coronavirus COVID-19 outbreak, leaves Arrowe Park Hospital in Wirral, near Liverpool, on February 13, 2020 where he spent two weeks in quarantine. 83 British citizens repatriated from China amid the coronavirus COVID-19 outbreak being housed at Arrowe Park Hospital were able to leave the accommodation block near the hospital on February 13, 2020 after being quaratined for 2 weeks. (Photo by Peter Byrne/Pool/AFP Photo)





Out of service buses are parked on February 13, 2020 in Wuhan, Hubei province, China. Flights, trains and public transport including buses, subway and ferry services have been closed for 22 days. The number of those who have died from the Wuhan coronavirus, known as 2019-nCoV, in China climbed to 1368. (Photo by Stringer/Getty Images)





A worker with sanitizing equipment crosses the road in front of a hospital in Yichang city of Hubei, the province hit hardest by the novel coronavirus outbreak, China on February 12, 2020. (Photo by Reuters/China Daily)





A boy wears a cardboard box on his head at the Shanghai Railway station in Shanghai on February 13, 2020. The number of deaths and new cases from China's COVID-19 coronavirus outbreak spiked dramatically on February 13 after authorities changed the way they count infections in a move that will likely fuel speculation that the severity of the outbreak has been under-reported. (Photo by Noel Celis/AFP Photo)





A man wearing a face mask walks his dog as he pulls a trolley after shopping in Beijing on February 13, 2020. The number of deaths and new cases from China's COVID-19 coronavirus outbreak spiked dramatically on February 13 after authorities changed the way they count infections in a move that will likely fuel speculation that the severity of the outbreak has been under-reported. (Photo by AFP Photo/China Stringer Network)





French President Emmanuel Macron, accompanied by Compagnie du Mont-Blanc CEO Mathieu Dechavanne and glaciologist Luc Moreau, visits the “Mer de Glace”, France's largest glacier, which has shrunk dramatically in recent years, in Chamonix, France on February 13, 2020. (Photo by Denis Balibouse/Pool via Reuters)





Buddhist monks sit during a ceremony to reopen the Terminal 21 shopping mall in Nakhon Ratchasima, Thailand, Thursday, February 13, 2020. The worst-ever mass shooting in the country took place at the shopping mall over the weekend. (Photo by Diego Azubel/EPA/EFE)





Spencer Craig (bottom) and Caitlin Thomson Moylan (top) of the Blanc de Blanc Encore perform during a media preview of the Garden of Unearthly Delights festival precinct at Rundle Park in Adelaide, Australia, 13 February 2020. (Photo by Roy Vandervegt/EPA/EFE)





Miss Universe, Zozibini Tunzi poses for a photograph on a open-topped bus as she tours through the streets as part of her triumphant homecoming tour in Johannesburg on February 13, 2020. (Photo by Phill Magakoe/AFP Photo)