SHANGHAI: Residential units are seen in Shanghai, China, on Sunday, April 17, as the country battles its biggest wave yet of Covid-19. The city  has been under lockdown since March (Hector Retamal/AFP/Getty Images)

ASHKELON: Streaks of light are seen from Ashkelon, Israel, as the country's Iron Dome air defense system intercepts rockets launched from Gaza on Thursday, April 21. Palestinians and Israeli security forces clashed early Thursday around the entrance to the Al-Aqsa Mosque in Jerusalem's Old City. Israel responded to the rockets fired from Gaza with airstrikes (Amir Cohen/Reuters)

BOSTON: Henry Richard is cheered on by his sister, Jane, and his mother, Denise, as he finishes the Boston Marathon on Monday, April 18. His younger brother, Martin, was killed in the 2012 Boston Marathon bombings. Jane lost a leg in the attack (Jessica Rinaldi/The Boston Globe/Getty Images)

BRASILIA: Brazilian President Jair Bolsonaro speaks at a protest against quarantine and social distancing measures in Brasilia on April 19 (Evaristo Sa/AFP/Getty Images)

THE HAGUE: Britain's Prince Harry and his wife Meghan, the Duchess of Sussex, hug Lisa Johnston, a former army medic who won a medal at the Invictus Games in The Hague, Netherlands, on Sunday, April 17. Prince Harry founded the Invictus Games, which is a sporting competition for service members and veterans who have been wounded, injured or sick (Peter Dejong/AP)