Tibetan monks in ghoulish costumes perform during a ceremony to chase away the “demon king” to bring peace and happiness for the Tibetan New Year at the Yonghegong Lama Temple in Beijing, Sunday, February 19, 2023. The annual event has returned after China lifted all bans on public gatherings from the outbreak of COVID-19. (Photo by Andy Wong/AP Photo)

A technician disinfects official balls before the Group F Africa Cup of Nations (CAN) 2021 football match between Mauritania and Gambia at Limbe Omnisport Stadium in Limbe on January 12, 2022. (Photo by Issouf Sanogo/AFP Photo)

A girl plays with pigeons in front of Royal Palace in Phnom Penh, Cambodia on February 24, 2023. (Photo by Tang Chhin Sothy/AFP Photo)

A participant takes photographs of his friend while climbing up the stairs during Sky Run, a vertical marathon event, held in the 123-story Lotte World Tower, in Seoul, South Korea on April 22, 2023. (Photo by Kim Soo-hyeon/Reuters)

Members of carnival marching bands in costumes parade through the streets during the so-called “Morgestraich” carnival parade in Basel, Switzerland, on Monday, early 07 March 2022. The traditional “Morgenstraich” parade with colorful lanterns and revelers in traditional costumes is starting early morning at 4 a.m. and marks the kick-off for the Basel carnival. It was not held in its usual form in the past two years because of the measures against the Covid-19 pandemic. (Photo by Georgios Kefalas/EPA/EFE)

Pedestrians wear masks as smoke and haze from bushfires in New South Wales blankets the CBD in Sydney, Australia, 10 December 2019. The New South Wales environment department says visibility across east and southwest Sydney was at a “hazardous” level on Tuesday morning, while air quality was poor in southwest Sydney and hazardous in northwest Sydney. (Photo by Steven Saphore/EPA/EFE)

People participate in the Cordao do Boitata carnival celebration in the Centro City neighborhood on February 16, 2020 in Rio de Janeiro, Brazil. (Photo by Bruna Prado/Getty Images)

A man wearing a hazmat suit and a mask holds a sign reading “The end is near – call grandma” at Times Square on March 14, 2020 in New York City. The World Health Organization said March 13, 2020 it was not yet possible to say when the COVID-19 pandemic, which has killed more than 5,000 people worldwide, will peak. “It's impossible for us to say when this will peak globally”, Maria Van Kerkhove, who heads the WHO's emerging diseases unit, told a virtual press conference, adding that “we hope that it is sooner rather than later”. (Photo by Johannes Eisele/AFP Photo)