Students wear masks to avoid the contact of coronavirus before their morning class at a high school in Phnom Penh, Cambodia, Tuesday, January 28, 2020. China on Tuesday reported 25 more deaths from a new viral disease, as the U.S. government prepared to fly Americans out of the city at the center of the outbreak. (Photo by Heng Sinith/AP Photo)





A Chinese boy dances as he participates in a lion dance during Chinese New Year celebrations in Kolkata, India, 25 January 2020. The Chinese Lunar New Year, or Spring Festival, which falls on 16 February this year will mark the Year of the Rat. (Photo by Piyal Adhikary/EPA/EFE)





Children play at the showgrounds in the southern New South Wales town of Bega where they are camping after being evacuated from nearby sites affected by bushfires on December 31, 2019. Thousands of holidaymakers and locals were forced to flee to beaches in fire-ravaged southeast Australia on December 31, as blazes ripped through popular tourist areas leaving no escape by land. (Photo by Sean Davey/AFP Photo)





Afghan children stand at a brick-making factory on the outskirts of Jalalabad city, eastern Afghanistan on November 13, 2019. (Photo by Reuters/Parwiz)





A Muslim girl studies at a Madrassa, or religious school, in the Muslim dominated Johapura area in the western Indian city of Ahmedabad on March 3, 2014. (Photo by Ahmad Masood/Reuters)





Nine-year-old Belgian student Laurent Simons, who studies electrical engineering and who will soon become the youngest university graduate in the world, poses in a laboratory at the University of Technology in Eindhoven, Netherlands on November 20, 2019. (Photo by Yves Herman/Reuters)





Honduran migrants girls play near Mexican National Guards where Central American migrants camp on the Mexican shore of the Suchiate River on the border with Guatemala, near Ciudad Hidalgo, Mexico, at sunrise Tuesday, January 21, 2020. Hundreds of Central American migrants are stranded in a sort of no-man’s land on the river border between Guatemala and Mexico after running up against lines of Mexican National Guard troops deployed to keep them from moving en masse on Monday into the country and on north toward the U.S. (Photo by Marco Ugarte/AP Photo)





A girl gives a flower to a police officer during a protest in Almaty on the Day of Unity of the People of Kazakhstan in Almaty on May 1, 2019. (Photo by Pyotr Trotsenko/Radio Free Europe/Radio Liberty)





A boy climbs on a horse in Kyrgyzstan's Chui region on February 23, 2019. (Photo by Gulzhan Turdubaeva/Radio Free Europe/Radio Liberty)





An Afghan child standing on the snow poses for a photograph at an Internal Displaced Persons (IDP) camp in downtown Kabul, Afghanistan, 13 January 2020. According to the ministry of health, at least 18 people died due to the freezing weather last week in Afghanistan. (Photo by Hedayatullah Amid/EPA/EFE)





Children play in a ball pit at a shopping mall in Bangkok on December 29, 2019. (Photo by Lillian Suwanrumpha/AFP Photo)





Boys drive a model of Russian WW II legend Soviet tank T-34 at the Sokolniki park in Moscow, Russia on January 4, 2019. (Photo by Yuri Kadobnov/AFP Photo)





People pose with Anonymous “Head and Neck of Giraffe” taxidermy art work during “The Child Within Me” exhibition at the Abdulmecit Efendi mansion in Istanbul, Turkey, 14 November 2019. Since the opening of the 16th Istanbul Biennial on 20 September, the exhibition has been visited by approximately 100,000 people and has been extended until 29 December due to intense interest. (Photo by Erdem Sahin/EPA/EFE/Rex Features/Shutterstock)





A girl cleans her feet at a temporary shelter for Honduran migrants in Tecun Uman, Guatemala in the border with Mexico, Sunday, January 19, 2020. Mexican authorities have closed a border entry point in southern Mexico after thousands of Central American migrants tried to push across a bridge between Mexico and Guatemala. (Photo by Moises Castillo/AP Photo)





Children ride on a makeshift funfair train at the Uhuru Park grounds during Christmas Day celebrations in Nairobi, Kenya on December 25, 2019. (Photo by Njeri Mwangi/Reuters)





Children slide down an ice-covered slope in Omsk, Russia on December 25, 2019. (Photo by Alexey Malgavko/Reuters)





Children pose for a photo from a window of a tent at Kaibe camp in Al-Rai district of Aleppo, Syria on October 21, 2019. Camp hosts approximately 1,300 Syrians from people migrated from Homs and Douma district of Damascus. (Photo by Esra Hacioglu/Anadolu Agency via Getty Images)





Qatari children dressed in Amiri Guard costumes participate in a military parade to mark Qatar's National Day, in Doha, Qatar, 18 December 2019. Qatar National Day marks Qatar's unification and independence in 1878 when Shaikh Jasim, the founder of the State, succeeded his father, Shaikh Muhammad Bin Thani, as the ruler and led the country towards unity. (Photo by Noushad Thekkayil/EPA/EFE/Rex Features/Shutterstock)





Makenna Goemmer, 11, rides a hoverboard in her family’s horse barn after practicing for a rodeo in Amissville, Va. on May 23, 2019. (Photo by Matt McClain/The Washington Post)





Blaze, 8, from Swindon, is covered from head to toe as he plays in the mud at Weston-super-Mare beach on August 4, 2019, as the tide recedes and the huge expanse of mud flats cover the beach where holidaymakers enjoy splashing around. (Photo by Ben Birchall/PA Images via Getty Images)