BEIJING, Jan. 21 (Xinhua) -- CoronaVac, an inactivated COVID-19 vaccine developed by China's Sinovac Biotech Ltd., has shown good efficacy in clinical trials and can offer broad-spectrum protection against different coronavirus strains, according to Sinovac Chairman and CEO Yin Weidong.
The phase-3 clinical trials of the Sinovac vaccine are being mainly conducted in Brazil, Indonesia and Turkey.
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