Exclusive: Chinese scientists '99% confident' their coronavirus vaccine will work



Chinese scientists working on a COVID-19 vaccine have told Sky News they are “99%” sure it will be effective.

Sinovac, a Beijing-based biotech company, currently has its coronavirus vaccine in stage 2 trials, with more than 1,000 volunteers participating.

Our China Correspondent Tom Cheshire has visited the labs in Beijing and has this report.

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