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)

Street animators wearing fancy costumes take a break on a bench in a park in Stavropol, Russia on March 14, 2021. (Photo by Eduard Korniyenko/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)

Protesters clash with police at Speakers Corner as thousands attend Unite For Freedom Against COVID-19 passports and vaccines in London, UK on April 24, 2021. People called online to a flash mob-style mass gathering against vaccine passport, face masks and lockdown. The government aims to provide official proof of vaccination for millions of British holidaymakers this summer starting as early as 17 May. (Photo by World Entertainment News Network)

Birds are seen at Kizilirmak Bird Paradise in Turkey's Samsun on April 22, 2021. Kizilirmak Delta Bird Sanctuary, which is on the UNESCO World Heritage Tentative List and hosts 359 to 487 species of birds in Turkey, became more active with the arrival of spring. (Photo by Mehmet Kumcagiz/Anadolu Agency via Getty Images)

An Afghan girl stand in the doorway of her home in Kabul, Afghanistan, Monday, March 29, 2021. (Photo by Rahmat Gul/AP Photo)

These friends took a tumble after sharing a hug in Leeds in northern England on May 17, 2021, as Covid-19 lockdown restrictions ease. (Photo by London News Pictures)

A police officer wields his baton against a man as a punishment for defied curfew due to rise of COVID-19 coronavirus cases in Nagaon District of Assam, India on May 16, 2021. (Photo by Anuwar Hazarika/NurPhoto via Getty Images)