Young women wearing facemasks and traditional costumes of Song dynasty and Tang dynasty are seated on a bench in a park next to the East Lake in Wuhan, in China’s central Hubei province on May 17, 2020. The Guardian picture desk has chosen on December 17, 2020, the AFP photojournalist Hector Retamal as “Agency Photographer of the Year 2020” for his coverage of the novel coronavirus Covid-19 pandemic in Wuhan, China. (Photo by Hector Retamal/AFP Photo)

This picture taken on May 4, 2020 shows a gentoo penguin swimming in an enclosure at the Ocean Park theme park, which is currently closed due to the COVID-19 novel coronavirus, in Hong Kong. (Photo by Richard A. Brooks/AFP Photo)

Residents wearing masks to protect from the coronavirus cross a junction in Beijing on Wednesday, January 20, 2021. (Photo by Ng Han Guan/AP Photo)

In this picture taken on January 21, 2021, people visit a nightclub in Wuhan, China's central Hubei province. (Photo by Hector Retamal/AFP Photo)

This aerial photo shows bullet trains parked at a station in preparation for the upcoming Lunar New Year travel peak in Nanjing, in eastern China's Jiangsu province on January 27, 2021, as authorities have encouraged people to stay put during the Spring Festival to curb the spread of of COVID-19 coronavirus. (Photo by AFP Photo/China Stringer Network)

A woman takes photographs of falling snow from a window during a heavy snowfall, amid the coronavirus disease (COVID-19) pandemic in Seoul, South Korea, January 12, 2021. (Photo by Kim Hong-Ji/Reuters)

An Afghan boy carries his wheelbarrow in Kabul, Afghanistan, Monday, August 5, 2019. (Photo by Rafiq Maqbool/AP Photo)

Robot inventor Wu Yulu sits on a rickshaw driven by a robot which he invented in his village in rural Beijing's Tongzhou district, China, 17 November 2016. The 54-year-old Chinese farmer living in rural Beijing's Tongzhou district invented 63 robots in the past 30 years. Wu, who only received primary school education, plans to give up the agricultural work for his robot products. He regularly participates in exhibitions, transfers patent rights and teaches at the university to earn money. (Photo by Wu Hong/EPA)