Local citizens welcome Serbian President Aleksandar Vucic at the village of Pukovac where he receives the second dose of the Chinese Sinopharm vaccine in Doljevac, Serbia, April 27, 2021. Serbian President Aleksandar Vucic on Tuesday received the second dose of the Chinese Sinopharm COVID-19 vaccine here in southeastern Serbia and expressed gratitude to China and the Chinese people for "enormous support and help." (Photo by Wang Wei/Xinhua)
