A man receives a vaccine jab at NHS (National Health Service) COVID Vaccine Center at Wembley Stadium in London, Britain, on Dec. 19, 2021. (Photo by Ray Tang/Xinhua)
Photo taken on Dec. 19, 2021 shows a general view of NHS (National Health Service) COVID Vaccine Center at Wembley Stadium in London, Britain. (Photo by Ray Tang/Xinhua)
People queue outside the NHS (National Health Service) COVID Vaccine Center at Wembley Stadium in London, Britain, on Dec. 19, 2021. (Photo by Ray Tang/Xinhua)
Photo taken on Dec. 19, 2021 shows a general view of NHS (National Health Service) COVID Vaccine Center at Wembley Stadium in London, Britain. (Photo by Ray Tang/Xinhua)