Seven-year-old Mimi Meade winces from the sting as Dr. Richard Mulvaney inoculates her April 26, 1954 in McClean, Va., with the new Salk polio vaccine. Mrs. John Lucas, a registered nurse, holds Mimi's arm steady as she gets one of the first injections of the countrywide test. (Photo by Harvey Georges/AP Photo)

Dutch cyclist Fabio Jakobsen's bicycle (behind, L) flies through the air as he collides with compatriot Dylan Groenewegen (on the ground, L) during the opening stage of the Tour of Poland race in Katowice, southern Poland on August 5, 2020. The Dutch rider was fighting for his life on Wednesday after he was thrown into and over a barrier at 80km/h in a sickening conclusion to the opening stage of the Tour of Poland. (Photo by Szymon Gruchalski/Forum/AFP Photo)

A Saudi trader wears a mask as he monitors stock information at the Saudi stock market in Riyadh, Saudi Arabia on August 25, 2020. (Photo by Ahmed Yosri/Reuters)

A demonstrator uses a TV case as a facemask during a protest to demand justice for Daniel Prude, on September 3, 2020 in New York City. Protests were planned in New York September 3 over the death of Daniel Prude, a black man that police hooded and forced face down on the road, according to video footage that prompted a probe from the state's attorney general. (Photo by Kena Betancur/AFP Photo)

This photograph, taken on September 28, 2019, shows an Erythrina Abyssinica planted in a pasture on Ferme Espoir, owned by former President Joseph Kabila, in Masisi territory, northeast of the Democratic Republic of Congo. (Photo by Alexis Huguet/AFP Photo)

A man runs on a small road in the outskirts of Frankfurt, Germany, before sunrise on Tuesday, September 1, 2020. (Photo by Michael Probst/AP Photo)

People look at a funnel cloud formed near the beach in Barcelona, Spain, Monday, September 21, 2020. (Photo by Emilio Morenatti/AP Photo)

Apollinariia Panfilova and Dmitry Rylov of Russia perform in the Pairs Short Program during day one of the ISU Grand Prix of Figure Skating Rostelecom Cup at Megasport Arena on November 20, 2020 in Moscow, Russia. (Photo by Evgenia Novozhenina/Reuters)