Clowns Perlita and Tapetito, wearing protective gear amid the new coronavirus pandemic, speak with resident Enrique Zeballos as they arrive to disinfect his home free of charge, in El Alto, Bolivia, Friday, September 11, 2020. The lack of traditional employment for the clowns due to the pandemic has led them towards other avenues of making money. But for people with limited income they provide their disinfection services free of charge. (Photo by Juan Karita/AP Photo)

Police officers detain a woman during an opposition rally to protest the official presidential election results in Minsk, Belarus, Saturday, September 19, 2020. Daily protests calling for the authoritarian president's resignation are now in their second month and opposition determination appears strong despite the detention of protest leaders. (Photo by TUT.by via AP Photo)

A potential Banksy has appeared on Vale Street in Bristol, United Kingdom on December 10, 2020. The elusive artist is from the city and is known for creating new works without anyone catching him in the act. An image of an old woman sneezing without covering her mouth has been spotted on a wall in the Totterdown area – a possible nod to the current health crisis. Crowds are already gathering at the bottom of Vale Street – one of Britain's steepest roads – to take pictures and discuss. (Photo by South West News Service/Action Press)

A person falls down stairs while sledding in Central Park as snow falls in Manhattan, New York City, U.S., February 7, 2021. (Photo by Andrew Kelly/Reuters)

A member of a winter swimming club wears flippers during the celebration of Maslenitsa, also known as Pancake Week, a pagan holiday, marking the end of the winter, in Novosibirsk, Russia. (Photo by Alexandr Kryazhev/Sputnik/Profimedia)

A man and his son ride a horse at Tahrir Square in Sanaa, Yemen on January 21, 2021. (Photo by Khaled Abdullah/Reuters)

A masked tourist poses for a souvenir photo next to a graffiti titled “Mobile World Virus” depicting “La Gioconda”, aka Mona Lisa, with a mobile phone and a medical mask, by urban artist TVBoy, close to the Sant Jaume square in Barcelona, Spain, 09 March 2020. Barcelona's Deputy Mayor and two town councillors are in quarantine after they were in contact with a City Hall's worker who was tested positive for the COVID-19 coronavirus. (Photo by Quique Garcia/EPA/EFE)

A boy fires blanks from a Kalashnikov rifle, during Maslenitsa celebrations, or Shrovetide, to say farewell to winter in Minsk, Belarus, Sunday, March 1, 2020. Maslenitsa is a traditional Russian and Belarusian holiday marking the end of winter that dates back to pagan times. (Photo by Sergei Grits/AP Photo)