Residents wearing masks to protect from the coronavirus cross a junction in Beijing on Wednesday, January 20, 2021. (Photo by Ng Han Guan/AP Photo)

Mortuary workers walk past a Christmas tree as they remove the body of an elderly person who died of COVID-19 from a nursing home in downtown Barcelona, Spain, Wednesday, December 23, 2020. (Photo by Emilio Morenatti/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)

Toure, a Gambian salt harvester, holds a basket filled with the salt collected from the crust of the bottom of the Lake Retba (Pink Lake) in Senegal on March 16, 2021. Lake Retba, divided from the Atlantic Ocean by a narrow corridor of dunes, owes its name to the pink waters caused by the Dunaliella salina algae and is known for its high salt content, up to 40% in some areas. (Photo by Marco Longari/AFP Photo)

Omar Gamal, a 28-year-old pigeon keeper, stands next to his pigeon coop on his rooftop in the Egyptian capital's twin city of Giza on February 21, 2021, with the Pyramids of (R to L) Khufu (Cheops), Khafre (Chephren), and Menkaure (Menkheres) in the background. An ancient tradition handed down through the generations, the practice of domesticating pigeons stretches across borders from the banks of the Nile to north Africa and beyond, with people not only training birds for competitions, but also serving them up as a dining delicacy. (Photo by Khaled Desouki/AFP Photo)

People take a photo next to a blooming tree during cherry blossom season in Yuyuantan Park in Beijing, China on March 31, 2021. (Photo by Thomas Peter/Reuters)

A participant takes part at performance of Mexican dance academy to protest against authorities due not allow freedom of labor union during the celebration of International Dance Day at Palace of Fine Arts (Palacio de Bellas Artes) on April 29, 2021 in Mexico City, Mexico. (Photo by Eyepix/NurPhoto/Rex Features/Shutterstock)

A boy, who came with the humanitarian transport of children from Ukrainian public orphanages following the Russian invasion of Ukraine, reacts as he has breakfast at the Hotel Ossa near Rawa Mazowiecka, Poland on March 5, 2022. (Photo by Kacper Pempel/Reuters)