People wait for Pope Francis to celebrate mass at the Franso Hariri Stadium in Irbil, Kurdistan Region of Iraq, Sunday, March 7, 2021. The Vatican and the pope have frequently insisted on the need to preserve Iraq's ancient Christian communities and create the security, economic and social conditions for those who have left to return (Photo by Andrew Medichini/AP Photo)

People drink in the street in the Soho area of London, on April 12, 2021 as coronavirus restrictions are eased across the country in step two of the government's roadmap out of England's third national lockdown. Britons on Monday toasted a significant easing of coronavirus restrictions, with early morning pints – and much-needed haircuts – as the country took a tentative step towards the resumption of normal life. Businesses including non-essential retail, gyms, salons and outdoor hospitality were all able to open for the first time in months in the second step of the government's roadmap out of lockdown. (Photo by Tolga Akmen/AFP Photo)

Seven-year-old Mimi Meade winces from the sting as Dr. Richard Mulvaney inoculates her April 26, 1954 in McClean, Va., with the new Salk polio vaccine. Mrs. John Lucas, a registered nurse, holds Mimi's arm steady as she gets one of the first injections of the countrywide test. (Photo by Harvey Georges/AP Photo)

A traditional large puppet figure known as “Ondel-ondel”, wearing a face mask, performs on a sidewalk of the main road, as the outbreak of the coronavirus disease (COVID-19) continues in Jakarta, Indonesia, January 4, 2021. (Photo by Willy Kurniawan/Reuters)