A country music fan cools off in the wind on the second day of the Stagecoach country music festival in Indio, California April 26, 2014. (Photo by Mike Blake/Reuters)

South Korean environmental activists wearing masks symbolizing the coronavirus attend a prevention campaign as South Koreans take measures to protect themselves against the spread of coronavirus (COVID-19) on March 30, 2020 in Seoul, South Korea. South Korea has called for expanded public participation in social distancing, as the country witnesses a wave of community spread and imported infections leading to a resurgence in new cases of COVID-19. According to the Korea Center for Disease Control and Prevention on Monday, 78 new cases were reported. The total number of infections in the nation tallies at 9,661. (Photo by Chung Sung-Jun/Getty Images)

An Indian policeman wearing a virus themed helmet rides on a horse during an awareness rally aimed at preventing the spread of new coronavirus in Hyderabad, India, Thursday, April 2, 2020. (Photo by Mahesh Kumar A./AP Photo)

Thai Buddhist monks wear face shields to protect themselves from new coronavirus as they walk to collect alms from devotees in Bangkok, Thailand, Tuesday, March 31, 2020. (Photo by Sakchai Lalit/AP Photo)

A police officer sings as a hearse drives along a street as part of a campaign sponsored by the Colombian police and a funerary home to raise awareness during the new coronavirus pandemic in Envigado, Antioquia, Colombia, on April 1, 2020. More than 20,000 cases of COVID-19 were registered in Latin America and the Caribbean by Wednesday, according to an AFP tally using information provided by national health authorities and the World Health Organization. (Photo by Joaquin Sarmiento/AFP Photo)

A man being tested for the COVID-19 novel coronavirus reacts as a medical worker takes a swab sample in Wuhan in China's central Hubei province on April 16, 2020. China has largely brought the coronavirus under control within its borders since the outbreak first emerged in the city of Wuhan late last year. (Photo by Hector Retamal/AFP Photo)

Planes land in fog at Heathrow Airport, west London, as heavy fog covers a many parts of the south east, on April 1, 2014. (Photo by Steve Parsons/PA Wire)

Palestinian female Hamas security officers demonstrate their skills during a graduation ceremony in the northern Gaza Strip, Wednesday, April 2, 2014. 1200 officers graduated from advanced training courses that lasted one year in Gaza police academy of Hamas. (Photo by Adel Hana/AP Photo)