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Volunteers test COVID-19 vaccine

Updated:2020-03-25 10:06:29   China Daily

A medical worker injects the recombinant novel coronavirus (COVID-19) vaccine into a volunteer recipient in Wuhan, Central China's Hubei province, on March 24, 2020. [Photo by Zhu Xingxin/chinadaily.com.cn]

Keywords:   Volunteers vaccine