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How effective? Chinese vaccines in numbers
(Xinhua) 13:47, June 02, 2021
An unprecedented experiment in the world, carried out in Brazil's small town of Serrana, in Sao Paulo State, has succeeded in reducing new deaths from COVID-19.
The leading role in this experiment is CoronaVac. How effective is the Chinese vaccine? Let's check the numbers.
(Web editor: Shi Xi, Liang Jun)
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