A pedestrian wearing a face mask to protect against coronavirus, walks in front of a mural, at a metro station in Athens, Greece, Monday, November 15, 2021. Authorities say the rate of death related to COVID-19 in Greece has reached its highest level in six months as roughly one-third of the country's population remains unvaccinated. (Photo by Thanassis Stavrakis/AP Photo)

Ayaka Oshita, a 27-year-old diver, practices in preparation for the upcoming seasonal feeding performance as a Santa diver at Sunshine Aquarium at Ikebukuro in Tokyo, Japan, 07 December 2021. Oshita has 15-month experience for feeding fish at the aquarium after she joined the aquarium in 2019. The Santa diver performance will be held for three days around the Christmas time. The aquarium will not inform the performance time to avoid the visitors' crowd due to the COVID-19 pandemic. (Photo by Kimimasa Mayama/EPA/EFE)

An Afghan hawker selling balloons walks along a path in a ground in Chaman-e-Hozori area in Kabul on December 10, 2021. (Photo by Ahmad Sahel Arman/AFP Photo)

A hiker walks in the Zillertal Alps during an autumn day near the village of Ginzling, Austria, October 15, 2019. (Photo by Lisi Niesner/Reuters)

An otter reaches for a snack from a customer at an otter cafe in Tokyo. Asian small-clawed otters are increasingly popular as novelty pets, particularly in Japan. Now international trade in the species may be banned. (Photo by Noriko Hayashi/The New York Times)

A model walks the runway during the Neo Fashion show during Berlin Fashion Week Autumn/Winter 2020 at Vienna House Adel's on January 13, 2020 in Berlin, Germany. (Photo by Robert Schlesinger/Getty Images for Neo.Fashion.2020)

Malaysian firemen make their way to a designated area to spray disinfectant, in an effort to combat coronavirus and COVID-19, at the entrance to a school in Kuala Lumpur, Malaysia, 14 April 2020. According to media reports, Malaysia has confirmed over 4,000 cases of coronavirus and COVID-19. (Photo by Ahmad Yusni/EPA/EFE/Rex Features/Shutterstock)

A thirty-year-old Dutch demonstrator displays a sign that reads: “Glad to be Gay” during a gay people march in Frankfurt, Germany on Saturday, July 28, 1979 which ended a week long homosexual meeting. Hundreds of homosexual converged for a week of movies, theater, rock concerts and workshops on gay rights. (Photo by Rolf Boehm/AP Photo)