Jeffrey Shiau, 35, a volunteer from the crowd, spits water into the mouth of Sam Kaufman, 27, a performer from the Human Fountains, during a reopening party held as coronavirus disease (COVID-19) restrictions are gradually lifted in Los Angeles, California, U.S. June 15, 2021. (Photo by Cheney Orr/Reuters)

Lava erupts from a crater of Mt. Etna, Europe's largest active volcano, behind Santa Maria della Guardia church in Belpasso, near Catania, in southern Italian island of Sicily, early Friday, June 18, 2021. Since Feb. 16, 2021, Mt. Etna has begun a series of spectacular eruptive episodes. (Photo by Salvatore Allegra/AP Photo)

People ride on a front loader as they make their way through floodwaters following heavy rainfall in Zhengzhou, Henan province, China on July 23, 2021. (Photo by Aly Song/Reuters)

Anicka Newell, of Canada, does a handstand ahead of the final of the women's pole vault at the 2020 Summer Olympics, Thursday, August 5, 2021, in Tokyo. (Photo by Matthias Schrader/AP Photo)

Female Afghan National Police (ANP) officers aim their weapons during a drill at a training centre near the German Bundeswehr army camp Marmal in Mazar-e-Sharif, northern Afghanistan on December 11, 2012. (Photo by Fabrizio Bensch/Reuters/File Photo)

A farmer waits for customers at a wholesale vegetable market in Prayagraj, Uttar Pradesh state, India, Sunday, July 25, 2021. (Photo by Rajesh Kumar Singh/AP Photo)

Black Ink Crew's Fly Tatted Sky puts her assets on display in a revealing outfit outside Cardi B's 29th birthday party hosted at La River Studios in Los Angeles, CA. on October 11 2021. (Photo by GIO/Backgrid USA)

A pedestrian wearing a face mask to protect against coronavirus, walks in front of a mural, at a metro station in Athens, Greece, Monday, November 15, 2021. Authorities say the rate of death related to COVID-19 in Greece has reached its highest level in six months as roughly one-third of the country's population remains unvaccinated. (Photo by Thanassis Stavrakis/AP Photo)