Could be weeks before vaccine efficacy against Omicron is known, says Moderna | ABC News

As concerns over the new Omicron COVID variant grow, pharmaceutical companies are working on modified versions of their vaccines to combat this new strain. Subscribe: http://ab.co/1svxLVE
But the chief executive of Moderna this week warned that existing vaccines may be ineffective against Omicron, and that it could take months before pharmaceuticals could manufacture variant-specific jabs.
Dr Paul Burton is the chief medical officer at Moderna. He says it's still very early stages.

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