A health worker shows an empty syringe after inoculating a woman with AstraZeneca's COVID-19 vaccine during the first day of a nationwide three-day vaccination drive at a school in Quezon city, Philippines on Monday, November 29, 2021. There has been no reported infection so far caused by the new variant in the Philippines, a Southeast Asian pandemic hotspot where COVID-19 cases have considerably dropped to below 1,000 each day in recent days, but the emergence of the Omicron variant has set off a new alarm. (Photo by Aaron Favila/AP Photo)

Off from school due to the Thanksgiving holiday this week, Felix Naranch, 7, right, and his brother Asa Naranch, 3, play with their father Stu Naranch in a pile of fall leaves that they raked together in a park, Tuesday, November 23, 2021, in Washington. (Photo by Jacquelyn Martin/AP Photo)

A handout photo made available by Jose Juan Rodriguez Rocha, on 17 November 2021 shows lightning over Cumbre vieja Volcano as seen from El Paso, La Palma, Canary Islands Spain, 14 November 2021. The lightning over a volcano is sometimes seen due to the charge of electricity caused by the friction of the expelled particles within the column of ashes and pyroclastic rocks. (Photo by Jose Juan Rodríguez Rocha/EPA/EFE)

Turkey's Yamaha rider Toprak Razgatlioglu celebrates winning the world championship during the World Superbike Championship at the Mandalika International Circuit in Kuta Mandalika, in central Lombok on November 21, 2021. (Photo by Bay Ismoyo/AFP Photo)

Chinese American actress Bai Ling arrives at the 58th Golden Horse Awards in Taipei, Taiwan, Saturday, November 27, 2021. Bai is a guest at this year's Golden Horse Awards, one of the Chinese-language film industry's biggest annual events. (Photo by Billy Dai/AP Photo)

A butterfly is seen at a farm in Beykoz disrtict of Istanbul, Turkey on October 26, 2021. Cigdem Unlu runs a farm where 800 butterflies live and being presented to the visitors as the environment exclusively weathered for butterflies. (Photo by Elif Ozturk Ozgoncu/Anadolu Agency via Getty Images)

Los Angeles Chargers wide receiver Keenan Allen runs onto the field before an NFL football game against the Pittsburgh Steelers, Sunday, November 21, 2021, in Inglewood, Calif. (Photo by Ashley Landis/AP Photo)

Burka-wearing Afghan women walk past a clothing shop, in Herat, Afghanistan, Tuesday, November 23, 2021. (Photo by Petros Giannakouris/AP Photo)