An instructor (C) adjusts the posture of students of flight attendant major during a training session at Anhui Foreign Languages University, in Hefei, Anhui province, China, May 25, 2015. (Photo by Reuters/China Daily)

Chelyabinsk Airport employees take part in an exercise to evacuate aircraft passengers showing symptoms of the 2019-nCoV pneumonia-like coronavirus on February 5, 2020. (Photo by Nail Fattakhov/TASS)

An Indian priest covers his face with a mask as a precaution against coronavirus and prays at a temple, in Prayagraj, India, Monday, June 8, 2020. (Photo by Rajesh Kumar Singh/AP Photo)

In this September 14, 2017 photo, young women pose for a photo inside their squatter building that used to house the Brazilian Institute of Geography and Statistics (IBGE) in the Mangueira slum of Rio de Janeiro, Brazil. Many lower-middle class Brazilians who gained ground during the boom years have since slid back closer to the poverty line. (Photo by Felipe Dana/AP Photo)

Women jump into the water during a traditional New Year bath in the Adriatic sea in Portoroz, Slovenia on January 1, 2018. (Photo by Jure Makovec/AFP Photo)

A woman argues as Belarus police block a street during an opposition rally in Minsk, Belarus, Saturday, March 25, 2017. Over the past two months, protests have broken out across the country of 9.5 million, sometimes attracting thousands – initially they were focused on the labor law but have grown to encompass calls for the resignation of President Alexander Lukashenko, whom critics call Europe's last dictator. (Photo by Sergei Grits/AP Photo)

German film actress Lilly Krug, daughter of Veronica Ferres and Martin Krug, attends the screening of “Armageddon Time” during the 75th annual Cannes film festival at Palais des Festivals on May 19, 2022 in Cannes, France. (Photo by Piroschka Van De Wouw/Reuters)

People wearing face masks pose for a photo holding the flag of the Communist Party of China the Museum of the Communist Party of China (CPC) in Beijing, China, 14 October 2022. The CPC museum is a site devoted to permanent and comprehensive exhibitions of the party's history. (Photo by Wu Hao/EPA/EFE)