A Filipino teacher checks a picture of a student shown on a tablet that is attached to robot during a graduation ceremony at a school in Taguig City, Philippines, 22 May 2020. At least 179 high school students received their diploma during an online graduation ceremony that was beamed live on Facebook as a measure to prevent the spread of the coronavirus and COVID-19 disease. (Photo by Francis R. Malasig/EPA/EFE)

A woman reacts after getting a nasal swab taken to test for the coronavirus in Noida, on the outskirts of New Delhi, India, Tuesday, June 16, 2020. India is the fourth hardest-hit country by the COVID-19 pandemic in the world after the U.S., Russia and Brazil. (Photo by Altaf Qadri/AP Photo)

A woman raises her fist during events to mark Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, amid nationwide protests against racial inequality, in the Harlem neighbourhood of Manhattan, in New York City, New York, June 19, 2020. (Photo by Andrew Kelly/Reuters)

Nursery plants are seen placed in people's seats during a rehearsal as Barcelona's Gran Teatre del Liceu opera reopens its doors with a concert for plants, to raise awareness about the importance of an audience after the coronavirus lockdown, in Barcelona, Spain on June 22, 2020. The Gran Teatre del Liceu reopens its doors, in which the 2,292 seats of the auditorium will be occupied on this occasion by plants. It will be on 22 June, broadcast live online, when the UceLi Quartet string quartet performs Puccini's “Crisantemi” for this verdant public, brought in from local nurseries. (Photo by Nacho Doce/Reuters)

Men make sweets at a small traditional factory in preparation for Eid al-Fitr, marking the end of the fasting month of Ramadan amid the spread of the coronavirus disease (COVID-19), in Kabul, Afghanistan on May 21, 2020. (Photo by Mohammad Ismail/Reuters)

A man takes a picture of the mural painted by the street artist Harry Greb depicting the Italian music composer Ennio Morricone, a day after the 91-year-old composer's death, on July 7, 2020 in Rome, Italy. (Photo by Antonio Masiello/Getty Images)

Beautician Alex Smith, 26, does the nails of Jules Aspen, 40, at the Madame Beauty salon in Chirton, North Tyneside, UK on July 13, 2020. Nail bars, beauty salons, tattoo and massage studios, physical therapy businesses, spas and piercing services are able to reopen in the latest lifting of restrictions in England. (Photo by Owen Humphreys/PA Images via Getty Images)

People wearing face masks to prevent the spread of coronavirus gather in a discotheque in Madrid, Spain, early Saturday, July 25, 2020. Nightlife is becoming the new target of Spanish authorities attempting to contain a spike in coronavirus infections since the country ended a lockdown. The Catalonia regional government has shut nightlife venues in Barcelona, and on Friday officials in Madrid said they were considering a similar step. (Photo by Manu Fernandez/AP Photo)