Delta variant renders herd immunity from Covid ‘mythical’
by Natalie Grover Science correspondent from Science | The Guardian on (#5N5KT)
Head of Oxford Vaccine Group rules out overall immunity, but also questions need for booster jabs
Reaching herd immunity is not a possibility" with the current Delta variant, the head of the Oxford Vaccine Group has said.
Giving evidence to MPs on Tuesday, Prof Sir Andrew Pollard said the fact that vaccines did not stop the spread of Covid meant reaching the threshold for overall immunity in the population was mythical".
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