Thiago Firmino, right, sprays disinfectant to help contain the spread of the new coronavirus, in the Santa Marta slum of Rio de Janeiro, Brazil, Saturday, April 24, 2021. (Photo by Bruna Prado/AP Photo)
A member of Romania's main honor guard regiment waits to deliver an official medal during ceremonies marking 100 years since the inauguration of “Cantacuzino” National Institute for Medical-Military Research and Development in Bucharest, Romania, 01 April 2021. Cantacuzino institute is Romania's main research facility for development of vaccines against various health diseases. It has an important role in the context of the COVID-19 coronavirus pandemic, managing all the anti-COVID-19 vaccines that arrive in Romania. (Photo by Ogdan Cristel/EPA/EFE)
People cook in front of a water station in their neighbourhood during a water ration on April 20, 2021 in Taichung, Taiwan. (Photo by Billy H.C. Kwok/Getty Images)
A man throws a traffic cone at a car during clashes following a “Kill the Bill” protest in London, Saturday, April 3, 2021. The demonstration is against the contentious Police, Crime, Sentencing and Courts Bill, which is currently going through Parliament and would give police stronger powers to restrict protests. (Photo by Alberto Pezzali/AP Photo)
Policemen surround a supporter of Tehreek-e-Labbaik Pakistan (TLP) during a protest in Lahore on April 12, 2021, after the arrest of their leader, who has called for the expulsion of the French ambassador. (Photo by Arif Ali/AFP Photo)
A health worker from the Portuguese charity hospital in Belem, Para State, Brazil, sings and prays for a COVID-19 patient inside the hospital wards and ICU areas as part of Easter celebrations, on April 4, 2021. (Photo by Tarso Sarraf/AFP Photo)
In this April 7, 2021, file photo, Mobile Emergency Care Service (SAMU) workers carry an elderly COVID-19 patient to an ambulance in Duque de Caxias, Rio de Janeiro state, Brazil. Nations around the world set new records Thursday, April 8, for COVID-19 deaths and new coronavirus infections, and the disease surged even in some countries that have kept the virus in check. Brazil became just the second country, after the U.S., to report a 24-hour tally of COVID-19 deaths exceeding 4,000. (Photo by Felipe Dana/AP Photo/File)
A girl practices martial arts during a training session at a school in Syrian opposition-held village of al-Jeineh, Syria on April 11, 2021. (Photo by Khalil Ashawi/Reuters)
Children prepare to take part in a training demonstration of the Regional Coordinator of Community Authorities (CRAC-PF) vigilante force, in the village of Ayahualtempa, Guerrero State, Mexico, on April 10, 2021. The CRAC-PF vigilante group trains children as young as five so they can protect themselves from drug-related criminal groups operating in the area. (Photo by Pedro Pardo/AFP Photo)
Real Madrid's French forward Karim Benzema falls over the advertisement boards during the Spanish League football match between Real Madrid CF and SD Eibar at the Alfredo di Stefano stadium in Valdebebas on the outskirts of Madrid on April 3, 2021. (Photo by Gabriel Bouys/AFP Photo)
A child walks by bunk beds at Gimnasio Kiki Romero, a gym which has been converted into a makeshift migrant shelter in Ciudad Juarez on April 6, 2021. The shelter was set up to accommodate the growing number of migrants being expelled from the United States into Juarez. (Photo by Paul Ratje/AFP Photo)
Nurse Pilar Rodríguez arrives at the small town of Buger, barely a thousand inhabitants, at the Balearic Island of Mallorca, Spain, Friday, April 23, 2021. Pilar Rodríguez, age 49, is one of three nurses in the town of Sa Pobla in the interior of the island to administer shots against COVID-19 there and in nearby villages as Buger. (Photo by Francisco Ubilla/AP Photo)