A staff member of a toy store wears a face mask as she invites customers to enter the store, in London, Tuesday, September 22, 2020. British Prime Minister Boris Johnson has slammed the brakes on the country's return to offices, saying people should work from home if possible to help slow the spread of the coronavirus. Johnson on Tuesday announced a package of new restrictions, including a requirement for pubs, restaurants and other hospitality venues in England to close between 10 p.m. and 5 a.m. (Photo by Frank Augstein/AP Photo)

Sweden's Mikael Ymer slips and falls in the first round match of the French Open tennis tournament against Serbia's Novak Djokovic at the Roland Garros stadium in Paris, France, Tuesday, September 29, 2020. (Photo by Alessandra Tarantino/AP Photo)

A schoolgirl stands next to the Kenya-Uganda railway line during the partial reopening of schools, after the government scrapped plans to cancel the academic year due to the coronavirus disease (COVID-19) pandemic, in Kibera slums of Nairobi, Kenya on October 12, 2020. (Photo by Thomas Mukoya/Reuters)

Models present creations from the SGM ART MOUSE JI during the China Fashion Week in Beijing, China, 25 October 2020. The fashion​ event runs from 24 October to 01 November. (Photo by Wu Hong/EPA/EFE)

Masks based on real people's faces are diplayed at the Shuhei Okawara's mask shop in Tokyo, Japan on December 16, 2020. (Photo by Issei Kato/Reuters)

A red squirrel sniffs out nuts inside Christmas stockings as part of the festive celebrations and enrichment programme at Wildwood Escot Park in Ottery St Mary, Devon, United Kingdom on December 17, 2020. (Photo by Ben Birchall/PA Images via Getty Images)

Aide Choque, wearing a mask amid the COVID-19 pandemic, jumps with her skateboard during a youth talent show in La Paz, Bolivia, Wednesday, September 30, 2020. Young women called “Skates Imillas”, using the Aymara word for girl Imilla, use traditional Indigenous clothing as a statement of pride of their Indigenous culture while playing riding their skateboards. (Photo by Juan Karita/AP Photo)

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)