Indian people bang utensils and clap from the balconies of a residential building in Mumbai, India, 22 March 2020. Prime Minister Narendra Modi asks citizens to impose self-curfew to fight Coronavirus COVID-19 and also ask them to clap, bang the bells and utensils at 5pm Indian time to mark of respect and to thank the medical staff and others working 24 hours, during Covid-19 outbreak to keeping the Indians safe. (Photo by Divyakant Solanki/EPA/EFE)

An air plane takes off from the airport as air traffic is effected by the spread of the coronavirus disease (COVID-19) in Frankfurt, Germany, March 16, 2020. (Photo by Kai Pfaffenbach/Reuters)

A Thai Buddhist monk prepares to take part in a televised anti-plague prayer at Wat Traimit Temple (Temple of the Golden Buddha) amid lockdown restrictions to contain the spread of the COVID-19 coronavirus in Bangkok on March 25, 2020. The monks at Buddhist temples nationwide chanted the Rattanasoot (Seven Legends) Prayer in unison in a bid to boost public morale amid the epidemic of COVID-19 coronavirus. (Photo by Mladen Antonov/AFP Photo)

Pedestrians cross a road in Cape Town, South Africa Saturday, March 28, 2020, as South Africa went into a nationwide lockdown for 21 days in an effort to control the spread of the coronavirus. (Photo by Nardus Engelbrecht/AP Photo)

A South African police officer speaks to residents of the densely populated Alexandra township east of Johannesburg Friday, March 27, 2020. (Photo by Jerome Delay/AP Photo)

An employee of cake shop prepares chocolate Easter bunnies with masks in Lykovrisi, northern Athens, on Wednesday, April 8, 2020. Cake shops and bakeries in Greece have remained open during a strict circulation ban in Greece to contain the spread of the COVID-19, but authorities have intensified a crackdown on lockdown violations ahead of Easter, which is celebrated by Orthodox Christians on April 19. Greece's Orthodox Church says it will not permit any public gatherings for Easter services. (Photo by Thanassis Stavrakis/AP Photo)

Medical workers walk by a police robot at the Wuhan Tianhe International Airport after travel restrictions to leave Wuhan, the capital of Hubei province and China's epicentre of the novel coronavirus disease (COVID-19) outbreak, were lifted, April 8, 2020. (Photo by Aly Song/Reuters)

A police officer chases shoppers to clear the streets of the Red Light market on the first day of lockdown to stop the spread of the coronavirus disease (COVID-19) in Monrovia, Liberia on April 11, 2020. (Photo by Derick Snyder/Reuters)