Zhang Lingwen (R) and Huang Miaowei pose for photos after their marriage registration in front of the marriage registration office of the Civil Affairs Bureau of Nanshan District in Shenzhen, south China's Guangdong Province on February 14, 2020. During the fight against the novel coronavirus epidemic, the Civil Affairs Bureau in Shenzhen has adopted the appointment system and cancelled the certification ceremony. Some procedures, including filling up application materials, have been transferred to the outdoor to avoid contact. (Photo by Chine Nouvelle/SIPA Press/Rex Features/Shutterstock)





A seller wearing a protective face mask packs food for customers on the street near the Houhai lake, in Beijing, China, 17 February 2020. The disease caused by the novel coronavirus (SARS-CoV-2) has been officially named Covid-19 by the World Health Organization (WHO). The outbreak, which originated in the Chinese city of Wuhan, has so far killed at least 1,776 people and infected over 71,000 others worldwide, mostly in China. (Photo by Roman Pilipey/EPA/EFE)





A man wearing a face mask rides a bicycle, as the country is hit by an outbreak of the novel coronavirus, in Beijing, China on February 12, 2020. (Photo by Carlos Garcia Rawlins/Reuters)





Wang, 32, and his wife Shi, 30, wearing masks are seen at a marriage registry office on Valentine's Day in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 14, 2020. (Photo by Aly Song/Reuters)





Wang, 32, and his wife Shi, 30, pose for a selfie as Wang holds their marriage certificates at a marriage registry office on Valentine's Day in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 14, 2020. (Photo by Aly Song/Reuters)





Jia, 29, and his wife Su, 28, wearing masks take impression of fingerprints at a registration session at a marriage registry office on Valentine's Day in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 14, 2020. (Photo by Aly Song/Reuters)





A couple wearing masks embrace in an MTR train, following the outbreak of the novel coronavirus on Valentine's Day in Hong Kong, China on February 14, 2020. (Photo by Tyrone Siu/Reuters)





Staff members spray disinfectant on packs with flower bouquets to be delivered on Valentine's Day following an outbreak of the novel coronavirus in the country, at the Mulan Blossom flower shop in the central business area in Beijing, China on February 14, 2020. (Photo by Tingshu Wang/Reuters)





A couple wearing face masks walks at the Sanlitun shopping area amid snowfall, following an outbreak of the novel coronavirus in the country, on Valentine's Day in Beijing, China on February 14, 2020. (Photo by Tingshu Wang/Reuters)





Florist Zhen Zhen (L) and shop owner Jiankun Song prepare flower bouquets to deliver on Valentine's Day, at the Mulan Blossom flower shop in Beijing, February 14, 2020. (Photo by Tingshu Wang/Reuters)





A man wears a gas mask as he holds a bouquet of flowers, following the outbreak of the novel coronavirus on Valentine’s Day in Hong Kong, China on February 14, 2020. (Photo by Tyrone Siu/Reuters)





A medical worker in protective suit gets into an ambulance at a hospital in Xuanhua district of Zhangjiakou, Hebei province, China on February 13, 2020. (Photo by Reuters/China Daily)





A man wearing a face mask rides an escalator at the Shanghai Hongqiao Railway Station on the last day of the Spring Festival travel rush, as the country is hit by an outbreak of the novel coronavirus, in Shanghai, China February 18, 2020. (Photo by Aly Song/Reuters)





In this photo released by China's Xinhua News Agency, Chinese military medics arrive at the Tianhe International Airport in Wuhan, central China's Hubei Province, February 13, 2020. China has mobilized its military resources in its fight against the COVID-19 viral outbreak. (Photo by Li Yun/Xinhua via AP Photo)





A man wearing a face mask carries a Valentine's Day bouquet as he rides a scooter in Hangzhou in eastern China's Zhejiang Province, Friday, February 14, 2020. China on Friday reported another sharp rise in the number of people infected with a new virus, as the death toll neared 1,400. (Photo by Chinatopix via AP Photo)





A man wears a mask as he walks across an empty intersection during the morning rush hour as snow falls in Beijing, Friday, February 14, 2020. (Photo by Mark Schiefelbein/AP Photo)





A woman wears safety goggles, a face mask, and rubber gloves as she rides a nearly empty subway train in Beijing, Friday, February 14, 2020. (Photo by Mark Schiefelbein/AP Photo)





A man wearing a face mask holds a flower bouquet as he stands along a street in Beijing, Friday, February 14, 2020. (Photo by Mark Schiefelbein/AP Photo)





A man wearing protective face mask waits at a street corner with a bouquet on Valentine's Day in Hong Kong, Friday, February 14, 2020. (Photo by Kin Cheung/AP Photo)





In this Monday, February 17, 2020, photo released by Xinhua News Agency, patients infected with the coronavirus take rest at a temporary hospital converted from Wuhan Sports Center in Wuhan in central China's Hubei Province. China reported thousands new virus cases and more deaths in its update Tuesday on a disease outbreak that has caused milder illness in most people, an assessment that promoted guarded optimism from global health authorities. (Photo by Xiao Yijiu/Xinhua via AP Photo)





A Chinese woman wears a protective mask as she walks in a nearly empty shopping area during a light wet snowfall on February 14, 2020 in Beijing, China. The number of cases of the deadly new coronavirus COVID-19 rose to more than 55000 in mainland China Friday, in what the World Health Organization (WHO) has declared a global public health emergency. China continued to lock down the city of Wuhan in an effort to contain the spread of the pneumonia-like disease which medicals experts have confirmed can be passed from human to human. In an unprecedented move, Chinese authorities have maintained and in some cases tightened the travel restrictions on the city which is the epicentre of the virus and also in municipalities in other parts of the country affecting tens of millions of people. The number of those who have died from the virus in China climbed to over 1380 on Friday, mostly in Hubei province, and cases have been reported in other countries including the United States, Canada, Australia, Japan, South Korea, India, the United Kingdom, Germany, France and several others. The World Health Organization has warned all governments to be on alert and screening has been stepped up at airports around the world. Some countries, including the United States, have put restrictions on Chinese travellers entering and advised their citizens against travel to China. (Photo by Kevin Frayer/Getty Images)