Chinese vaccine may not be ready for sale until at least 2021

A coronavirus vaccine candidate China is developing may not be ready for sale until at least 2021, as researchers struggle to move into large-scale human trials in the country because of a lack of new infections, a senior company executive said, according to SIA.

More than 10 experimental vaccines are being tested in humans globally as scientists race to protect against the novel coronavirus that has killed more than 450,000 people.

But none of them has yet passed late-stage phase 3 trials that require thousands of participants to determine a vaccine candidate's effectiveness.

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