In this April 14, 2014 file photo, Hamamatou Harouna, 10, who lost the use of her legs to polio, crawls to the restroom on the grounds of the Catholic Church where she and hundreds of others found refuge after fleeing violence in her village, in Carnot, Central African Republic. Health authorities on Tuesday, August 25, 2020 are expected to declare the African continent free of the wild poliovirus after decades of effort, though cases of vaccine-derived polio are still sparking outbreaks of the paralyzing disease in more than a dozen countries. (Photo by Jerome Delay/AP Photo/File)

The Etam models perform on catwalk during ETAM Show at Flagship Hausmann near Opera in Paris, France on September 29, 2020. (Photo by J.P. Pariente/SIPA Press)

Belgium's Crown Princess Elisabeth, center, marches past the Royal tribune with cadets of the military school during the National Day parade in Brussels, Wednesday, July 21, 2021. Belgium celebrates its National Day on Wednesday in a scaled down version due to coronavirus, COVID-19 measures. (Photo by Olivier Matthys/AP Photo)

People enjoying the second day of the Greenman Festival in South Wales, Crickhowell, United Kingdom on August 20, 2021. (Photo by Chris Fairweather/Huw Evans/Rex Features/Shutterstock)

Freshmen take part in a military training at Chongqing City Vocational College on September 23, 2021 in Chongqing, China. (Photo by Chen Shichuan/VCG via Getty Images)

Dancers from Malaysia's pavilion perform wearing face shields due to the coronavirus at Expo 2020, in Dubai, United Arab Emirates, Sunday, October 3, 2021. (Photo by Jon Gambrell/AP Photo)

Children ride on the back of a truck at a camp for internally displaced people (IDPs) in Marib, Yemen on September 9, 2021. (Photo by Ali Owidha/Reuters)

A paramedic enters an ambulance vehicle as she responds to a call received by Ambulance Station No 3 of Rostov-on-Don's Emergency Care Hospital on New Year's Day in Rostov-On-Don, Russia on January 1, 2022. (Photo by Erik Romanenko/TASS)