Doubts over Sinovac’s COVID-19 vaccine remain

Yahoo News Singapore Videos
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3 days ago
The sale of Sinovac’s COVID-19 vaccine to several countries has sparked intense debate, with some experts questioning its efficacy amid contrasting trial results. RELATED STORY: https://sg.news.yahoo.com/covid-19-senior-citizens-vaccination-begin-this-month-four-centres-093322642.html
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