Students react outside the Department for Education as they hear the news of government U-turn on exam grades in London, Britain on August 17, 2020. The British government bowed to public pressure over its school exam grading system, ditching an algorithm that downgraded the results awarded to students in England after their tests were canceled due to COVID-19. (Photo by John Sibley/Reuters)





A man smokes a cigarette with his eyes covered by a face mask as he takes part in a protest against the use of protective masks during the coronavirus disease (COVID-19) pandemic, in Madrid, Spain on August 16, 2020. (Photo by Juan Medina/Reuters)





In this photo released by China's Xinhua News Agency, staff members from the Chinese Consulate in Houston, USA, arrive at an airport in Beijing, Monday, August 17, 2020. A charter flight carrying employees of the consulate, which was ordered closed by the U.S. government in July amid escalating diplomatic tensions, arrived in Beijing on Monday night. (Photo by Yue Yuewei/Xinhua via AP Photo)





A pro-democracy protester wears a face mask at a rally to demand the government to resign, to dissolve the parliament and to hold new elections under a revised constitution, near the Democracy Monument in Bangkok, Thailand, August 16, 2020. (Photo by Jorge Silva/Reuters)





A health worker takes a sample for a PCR test for the COVID-19 at a medical center in Madrid, Spain, Monday, August 17, 2020. New daily cases of the coronavirus in Spain have been steadily climbing since the country ended a more than three-month lockdown on June 21.(Photo by Andrea Comas/AP Photo)





Syrians ride a bicycle past a mural painted as part of an awareness campaign by the United Nations International Children's Emergency Fund (UNICEF) and World Health Organization (WHO) intitative, bearing instructions on protection from COVID-19 in the Kurdish-majority city of Qamishli of Syria's northeastern Hasakeh province on August 16, 2020, after a spike in infections in the area. (Photo by Delil Souleiman/AFP Photo)





Nepalese army personnel pay tributes before the body of a person who died of COVID-19 before cremating the same in Kathmandu, Nepal, Monday, August 17, 2020. (Photo by Niranjan Shrestha/AP Photo)





A woman confesses to a father in the Iglesia del Carmen, in Panama City, Panama, 17 August 2020. Panama reopened retail sales, beauty parlors and barbershops with limitations and maintaining mobility restrictions for the population, as part of the slow economic reopening amid the COVID-19 pandemic. (Photo by Bienvenido Velasco/EPA/EFE)





A man walks past an informational mural about the coronavirus painted on the outside walls of the Coast General Hospital in the coastal city of Mombasa, Kenya, Monday, August 17, 2020. (Photo by AP Photo/Stringer)





People commute early morning in Tokyo on August 17, 2020. Japan's economy shrank a historic 7.8 percent in the April-June quarter, the worst contraction in the nation's modern history, as the coronavirus deepens the country's economic woes. (Photo by Charly Triballeau/AFP Photo)





School nurse Ethel Lydia Matias of the Philippines gestures to show she's smiling under her full protective gear amid the coronavirus pandemic at the GEMS Wellington Academy in Dubai, United Arab Emirates, Monday, August 17, 2020. Schools across the United Arab Emirates are preparing for classes to resume at the end of August amid the pandemic. (Photo by Jon Gambrell/AP Photo)





Italian Local Police officer patrols and checks with people wear protective facemasks at the Spanish Steps square, in Rome on August 17, 2020 as Italy declared mandatory to wear a protective facemask in all places where assemblies can be created to fight against the spread of the COVID-19 (novel coronavirus). (Photo by Alberto Pizzoli/AFP Photo)





Children wearing masks as a precaution against the coronavirus, take part in a “leap frog” race during a performance held as a part of a celebration of the country's 75th anniversary of independence in Tangerang, Indonesia, Monday, August 17, 2020. (Photo by Tatan Syuflana/AP Photo)





A Saudi farmer throws dates in the air during Unaizah Season for Dates, at Unaizah city in Al-Qassim province, Saudi Arabia on August 15, 2020. (Photo by Ahmed Yosri/Reuters)





A woman is sprinkled with color powder during a color festival in Jurmala, Latvia, August 16, 2020. (Photo by Edijs Palens/Xinhua News Agency via Getty Images)