A woman receives the first dose of the Pfizer-BioNTech COVID-19 vaccine at Sao Domingos de Rana sports complex, in Cascais, Lisbon, Portugal, on Feb. 18, 2021. (Photo by Pedro Fiuza/Xinhua)
People wait in front of vaccination booths to be inoculated with the Pfizer-BioNTech COVID-19 vaccine at Sao Domingos de Rana sports complex, in Cascais, Lisbon, Portugal, on Feb. 18, 2021. (Photo by Pedro Fiuza/Xinhua)