US Secretary of State Antony Blinken says the Biden administration is determined to "get to the bottom" of COVID-19's origins, and will hold China accountable. The US is carrying out its own investigation into the source of the pandemic, after saying a report from the World Health Organisation left many questions unanswered
Richard Kimber reports from Hong Kong.
IN: Antony Blinken
OUT: Richard Kimber, Hong Kong
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