A citizen receives a recombinant subunit vaccine against COVID-19 at an inoculation site in Hangzhou, east China's Zhejiang Province, April 14, 2021. The COVID-19 vaccine is introduced in Hangzhou, and residents are vaccinated in order. (Photo: China News Service/Wang Gang)
Citizens receive the recombinant subunit vaccine against COVID-19 in Hangzhou, east China's Zhejiang Province, April 14, 2021. (Photo: China News Service/Wang Gang)
Citizens stay at an observation area after receiving COVID-19 vaccines in Hangzhou, east China's Zhejiang Province, April 14, 2021. (Photo: China News Service/Wang Gang)
A citizen registers at an inoculation center in Hangzhou, east China's Zhejiang Province, April 14, 2021. (Photo: China News Service/Wang Gang)
