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A resident gets a booster shot of the COVID-19 vaccine at a community service center in Tianxin District of Changsha, central China's Hunan Province, Oct. 26, 2021. (Xinhua/Chen Zeguo)
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A medical worker prepares a booster shot of the COVID-19 vaccine at a community service center in Tianxin District of Changsha, central China's Hunan Province, Oct. 26, 2021. (Xinhua/Chen Zeguo)
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A resident gets a booster shot of the COVID-19 vaccine at a community service center in Tianxin District of Changsha, central China's Hunan Province, Oct. 26, 2021. (Xinhua/Chen Zeguo)
![](\pageflag.gif)
A resident gets a booster shot of the COVID-19 vaccine at a community service center in Tianxin District of Changsha, central China's Hunan Province, Oct. 26, 2021. (Xinhua/Chen Zeguo)