UK says AstraZeneca vaccine is 'safe and effective'

"We've been clear that it's both safe and effective... and when people are asked to come forward and take it, they should do so in confidence," Prime Minister Boris Johnson's official spokesman told reporters.

UK says AstraZeneca vaccine is 'safe and effective'
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"We've been clear that it's both safe and effective... and when people are asked to come forward and take it, they should do so in confidence," Prime Minister Boris Johnson's official spokesman told reporters.