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Amid High Stakes, China Is Fast-Tracking COVID-19 Vaccine Efforts

04:03
An engineer works in April on an experimental COVID-19 vaccine at Sinovac Biotech's facilities in Beijing. Sinovac Biotech is conducting one of four clinical trials that have been authorized in China. (AFP via Getty Images)
An engineer works in April on an experimental COVID-19 vaccine at Sinovac Biotech's facilities in Beijing. Sinovac Biotech is conducting one of four clinical trials that have been authorized in China. (AFP via Getty Images)

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