Revelers celebrate New Years Eve in socially distanced pods at Times Square on December 31, 2020, in New York City. On average, about one million revelers are drawn to the Crossroads of the World to watch performances and celebrate the New Year. This year a limited live audience of about 40 first responders and essential workers will be allowed to watch the New Years' ball drop from a secure area in Times Square. (Photo by David Dee Delgado/Getty Images)

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)

Chinese women dressed in traditional costumes and wearing masks visit a popular shopping street in Wuhan in central China's Hubei province, Saturday, January 23, 2021. A year after it was locked down to contain the spread of coronavirus, the central Chinese city of Wuhan has largely returned to normal, even as China continues to battle outbreaks elsewhere in the country. (Photo by Ng Han Guan/AP Photo)

A frontline worker reacts as she receives a dose of AstraZeneca's COVISHIELD vaccine, produced by the Serum Institute of India, during the coronavirus disease (COVID-19) vaccination campaign at a medical centre in New Delhi, India, February 24, 2021. (Photo by Anushree Fadnavis/Reuters)

Children play with their pet Hamster at a street in Kochi on March 29, 2021. (Photo by Arun Sankar/AFP Photo)

Elephants cool off at a zoo in Karachi, Pakistan, 31 March 2021. Caretakers at Karachi's zoo were working to keep animals cool during a heatwave affecting southern Pakistan. (Photo by Shahzaib Akber/EPA/EFE)

A frontline worker in personal protective equipment (PPE) sprays a flammable liquid on a burning funeral pyre of a man who died from the coronavirus disease (COVID-19), at a crematorium on the outskirts of Mumbai, India, April 15, 2021. (Photo by Francis Mascarenhas/Reuters)