A mother holds her daughter who is injected with a dose of the Soberana-02 COVID-19 vaccine, in Havana, Cuba, Thursday, September 16, 2021. Cuba began inoculating children as young as 2-years-old with locally developed vaccines on Thursday. (Photo by Ramon Espinosa/AP Photo)

Performers entertain passengers at London Heathrow Airport's T3 on Monday, November 8, 2021, as the US reopens its borders to UK visitors in a significant boost to the travel sector. Thousands of travellers are jetting off on transatlantic flights for long-awaited reunions with family and friends. (Photo by Steve Parsons/PA Images via Getty Images)

Spot-billed pelican interact on the banks of an artificial lake in Colombo on September 28, 2021. (Photo by Ishara S. Kodikara/AFP Photo)

A woman wearing face mask leaves a restaurant decorated with skeletons for the upcoming Halloween party, in Kiev, on October 26, 2021. Ukraine whose public health service is under-resourced reported that 734 coronavirus deaths in last 24 hours, the highest figure since the beginning of the pandemic. (Photo by Sergei Supinsky/AFP Photo)

A student walks past on the broken bridge hit by a river overflow following floods in Jaranih village, Central Hulu Sungai, South Kalimantan province, Indonesia on November 17, 2021. (Photo by Bayu Pratama S./Antara Foto via Reuters)

Diver Sven, still in disguise, cleans the aquarium glass after a Santa Claus visit to the fish at Sea Life Berlin on December 6, 2021. (Photo by Christoph Soeder/dpa)

Revelers perform during the Myths and Legends parade in Medellin, Antioquia department, Colombia on December 8, 2021. (Photo by Joaquin Sarmiento/AFP Photo)

Policemen guard Poland's Supreme Court as a protester lies on the pavement in Warsaw, Poland, on Thursday, April 22, 2021. A disputed disciplinary body within Poland's Supreme Court is examining a motion that could result in the arrest of a judge who has become a symbol of the fight for an independent judiciary. (Photo by Czarek Sokolowski/AP Photo)