Photo: Yonhap News
[Anchor]
Human trials of a coronavirus vaccine developed by Oxford University and AstraZeneca have been put on hold worldwide after a volunteer in Britain had a suspected serious adverse reaction.
The BBC's Fergus Walsh reports.
[Reporter]
This is the second time the Oxford coronavirus vaccine trial has been put on hold.
Such events for major trials are routine, according to the Oxford team, and happen anytime a volunteer is admitted to hospital and the cause of their illness is not immediately apparent.
That leads to an independent investigation and then a ruling from the medical regulator, the MHRA.
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