A man wearing a face mask to help curb the spread of the coronavirus receives a shot of Sinovac COVID-19 vaccine at a community health center in Hangzhou in east China's Zhejiang province on Monday, March 15, 2021. Sinovac said its COVID-19 vaccine is safe in children ages 3-17, based on preliminary data, and it has submitted the data to Chinese drug regulators for approval. More than 70 million shots of Sinovac's vaccine have been given worldwide, including in China. (Chinatopix Via AP)
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