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. ABC News provides around the clock coverage of news events as they break in Australia and abroad, including the latest coronavirus pandemic updates. It's news when you want it, from Australia's most trusted news organisation. For more from ABC News, click here: https://ab.co/2kxYCZY Watch more ABC News content ad-free on iview: https://ab.co/2OB7Mk1 Go deeper on our ABC News In-depth channel: https://ab.co/2lNeBn2 Like ABC News on Facebook:   / abcnews.au   Follow ABC News on Instagram:   / abcnews_au   Follow ABC News on Twitter:   / abcnews   Note: In most cases, our captions are auto-generated. #ABCNews #ABCNewsAustralia