A woman cries as she watches a building burn after a protest over the death of George Floyd, Sunday, May 31, 2020, in La Mesa, Calif. Protests were held in U.S. cities over the death of Floyd, a black man who died after being restrained by Minneapolis police officers on May 25. (Photo by Gregory Bull/AP Photo)

Indian Air Force (IAF) cadets march during a graduation parade at the Air Force Academy in Dundigal, on the outskirts of Hyderabad, India, Saturday, June 20, 2020. A total of 123 flight cadets including 19 women officers were commissioned as flying officers on Saturday on successful completion of their training, a press release said. (Photo by Mahesh Kumar A./AP Photo)

A disinfection worker wearing protective gear sprays disinfectant to a medical worker after they perform swab tests for the coronavirus disease (COVID-19) during mass test at Islamic boarding school of Sunan Pandanaran on July 29, 2020 in Yogyakarta, Indonesia. Indonesia is struggling to contain hundreds of new daily cases of coronavirus amid easing of rules to allow economic activity to resume, has reported more than 100,000 coronavirus cases and with at least more 4,900 recorded fatalities. (Photo by Ulet Ifansasti/Getty Images)

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)

Football Soccer, England vs Wales, EURO 2016, Group B, Stade Bollaert-Delelis, Lens, France on June 16, 2016. Soccer fan Laura Woods from England fixes her makeup near riot police near the Lens stadium before the England vs Wales game. (Photo by Wolfgang Rattay/Reuters)

A woman carrying a basket of papayas while walking through a vegetable market in Bangkok, Thailand November 11, 2011. (Photo by Kerek Wongsa/Reuters)

Early morning storms over the Masai Mara National Reserve, Kenya on August 26, 2016. (Photo by Action Press/Rex Features/Shutterstock)

(L-R) Edmea Pereira, 69, Elsa Rodrigues, 61, and Osmidio Conde, 71, take part in their surf class in Santos, Sao Paulo state, Brazil, March 16, 2016. When work is up, surf is up in Brazil, as a group of retired citizens take to the waves in keep-fit, keep-young sessions at a surf school in the city of Santos. The classes are run for free, three times a week at the Cisco Arana school, which aims to prove that age is just a number. (Photo by Nacho Doce/Reuters)