People wait to receive the COVID-19 vaccine in Majdanpek, Serbia, on April 6, 2021. Serbia, a country of around 7 million inhabitants, is the first European country to start mass vaccination with Sinopharm vaccines in mid-January. (Photo by Wang Wei/Xinhua)
People wait to receive the COVID-19 vaccine in Majdanpek, Serbia, on April 6, 2021. Serbia, a country of around 7 million inhabitants, is the first European country to start mass vaccination with Sinopharm vaccines in mid-January. (Photo by Wang Wei/Xinhua)
A man receives the COVID-19 vaccine in Majdanpek, Serbia, on April 6, 2021. Serbia, a country of around 7 million inhabitants, is the first European country to start mass vaccination with Sinopharm vaccines in mid-January. (Photo by Wang Wei/Xinhua)
A medical worker prepares a dose of the COVID-19 vaccine produced by China's Sinopharm in Majdanpek, Serbia, on April 6, 2021. Serbia, a country of around 7 million inhabitants, is the first European country to start mass vaccination with Sinopharm vaccines in mid-January. (Photo by Wang Wei/Xinhua)