Covid vaccine UK updates as South African variant spreads
All the latest coronavirus updates from Hull, East Yorkshire and beyond
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According to research the Oxford/AstraZeneca vaccine offers only limited protection against mild disease caused by the South African variant of coronavirus.
But the British company said early data from the study has shown the jab can protect against severe disease caused by the mutation.
The study - due to be published on Monday and first reported by the Financial Times - into the E484K mutation involved some 2,000 people, most of whom were young and healthy.