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)
Coronavirus vaccinated audience members watch Saudi prominent singer Mohammed Abdu as he performs at the newly built Super Dome, in Jiddah, Saudi Arabia, late Thursday, July 8, 2021. The concert is organized by the Saudi General Entertainment Authority after the kingdom lifted coronavirus restrictions on events in May. (Photo by Amr Nabil/AP Photo)
Flag bearers Bunpichmorakat Kheun and Sokong Pen of Team Cambodia during the Opening Ceremony of the Tokyo 2020 Olympic Games at Olympic Stadium on July 23, 2021 in Tokyo, Japan. (Photo by Kai Pfaffenbach/Reuters)
Team members pose during the closing ceremony of the Tokyo 2020 Olympic Games, on August 8, 2021 at the Olympic Stadium in Tokyo. (Photo by Dan Mullan/Reuters)
Children riding on donkeys queue to fill their jerrycans with water from a cistern at a make-shift camp for the internally displaced in Yemen's northern Hajjah province on July 12, 2021, amidst an extreme heat wave and severe water shortage. (Photo by Essa Ahmed/AFP Photo)
A fan of Colombia cheers prior to a qualifying soccer match between for the FIFA World Cup Qatar 2022 Colombia and Chile in Barranquilla, Colombia, Friday, September 10, 2021. (Photo by Fernando Vergara/AP Photo)
Performers entertain passengers at London Heathrow Airport's T3 on Monday, November 8, 2021, as the US reopens its borders to UK visitors in a significant boost to the travel sector. Thousands of travellers are jetting off on transatlantic flights for long-awaited reunions with family and friends. (Photo by Steve Parsons/PA Images via Getty Images)
Participants celebrate the awakening of the Hoppeditz, a fictional character whose return to life marks the start of the carnival season in Düsseldorf, western Germany on November 11, 2021. The 11.11. is celebrated this year again under Corona conditions in presence. However, in the carnival strongholds of Cologne and Düsseldorf, this only applies to the vaccinated and the recovered. (Photo by Federico Gambarini/dpa/Alamy Live News)