South Korean residents 89-year-old Jeong Nam-poong and 80-year-old Jang Yoon-hui , wearing protective masks, dance at park after their daytime discotheque “colatec” has been closed amid the coronavirus disease (COVID-19) outbreak in Seoul, South Korea, May 19, 2020. (Photo by Minwoo Park/Reuters)

Students wearing masks rest amid the coronavirus disease (COVID-19) pandemic in Seoul, South Korea, August 25, 2020. (Photo by Kim Hong-Ji/Reuters)

St. Senans' Aoife Allen competing in the Women's 3000m Steeplechase at Morton Stadium in Santry, Co. Dublin ob August 30, 2020 during the 2020 National Track & Field Championships. (Photo by Morgan Treacy/INPHO/Rex Features/Shutterstock)

Customers are seen in front of a shop that reopened in central Copenhagen, Denmark, 01 March 2021. Shops reopened after several months of closure due to the coronavirus COVID-19 pandemic. (Photo by Philip Davali/EPA/EFE)

A couple dance by the Golden Horn leading to the Bosphorus Strait separating Europe and Asia, in Istanbul, Friday, May 14, 2021. (Photo by Emrah Gurel/AP Photo)

Visitors take masks off to take pictures as hydrangea flowers are fully blooming at Meigetsu-in Buddhist temple Friday, June 11, 2021, in Kamakura, south of Tokyo. (Photo by Kiichiro Sato/AP Photo)

Spain’s fans react after their team lost the match against Italy while watching the match in a bar during the Euro 2020 soccer championship semifinal match between Italy and Spain, in Pamplona, northern Spain, Tuesday, July 6, 2021. (Photo by Alvaro Barrientos/AP Photo)

A rainbow forms on water from a spray machine used to suppress coal dust at the Krasnogorsky open pit coal mine, operated by Mechel PJSC, in Mezhdurechensk, Russia, on Monday, July 19, 2021. Russia’s government is betting that coal consumption will continue to rise in big Asian markets like China even as it dries up elsewhere. (Photo by Andrey Rudakov/Bloomberg)