Aeroflot employees with a puppy at the canine service of Aeroflot at Sheremetyevo International Airport in Moscow Region, Russia on October 2, 2020, that has started to train service dogs to detect COVID-19 in people. (Photo by Vladimir Gerdo/TASS)

An Extinction Rebellion activist takes part in a protest in Berlin, Germany on October 5, 2020. (Photo by Michele Tantussi/Reuters)

A man reacts to being warned by a British Transport Police officer for not wearing a face mask at King's Cross underground station, London, England on October 8, 2020. (Photo by Jonathan Brady/PA Images via Getty Images)

Bar Convent employee Lauren Masterman relaxes after cleaning a historic George and Arthur Maw tiled floor created in 1867, one of only two surviving examples of this assemblage of tiles, at England's oldest living convent Bar Convent on October 13, 2020. Visitors to the convent are being invited to follow in the footsteps of residents from the last 150 years and enjoy the historic space decorated with rare 19th century floor tiles. (Photo by Danny Lawson/PA Images via Getty Images)

Pumpkins and a mock up skull are seen ahead of Halloween at Wilmersdorfer Strasse shopping street, as the coronavirus disease (COVID-19) outbreak continues, in Berlin, Germany, October 26, 2020. (Photo by Fabrizio Bensch/Reuters)

Members of the Delirio dance company perform during the “Hechizo” (Spell) virtual show, inspired by the legend of the merry widow on Hallo​ween night, in Cali, Colombia, 31 October 2020. (Photo by Ernesto Guzman Jr./EPA/EFE)

Two women enjoy drinks outside a pub in the soho area of central London on November 4, 2020, on the eve of a second novel coronavirus COVID-19 lockdown in an effort to combat soaring infections. English pubs call last orders at the bar for a month on Wednesday evening, as the country effectively shuts down from November 5, for the second time this year to try to cut coronavirus cases. Prime Minister Boris Johnson insisted that the lockdown for England would end “automatically” in four weeks, as he tried to placate party critics over the spiralling economic fallout. (Photo by Stephen Lock/i-Images)

A woman uses protection masks to cover her face as protestors from the Million Mask March and anti lockdown protesters demonstrate, amid the coronavirus (COVID-19) outbreak in London, Britain on November 5, 2020. (Photo by Henry Nicholls/Reuters)