What is Delta herd immunity?

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The debate is raging. What is Delta herd immunity? Domain says:

National cabinet will start creating the path out of lockdowns on Friday when the country’s leaders look at how many Australians must be vaccinated against COVID-19 in order to end economically damaging restrictions.

…Premier Gladys Berejiklian has previously cited a figure of 75 to 80 per cent of the population needing to be vaccinated before the virus was allowed to circulate in the community.

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About the author
David Llewellyn-Smith is Chief Strategist at the MB Fund and MB Super. David is the founding publisher and editor of MacroBusiness and was the founding publisher and global economy editor of The Diplomat, the Asia Pacific’s leading geo-politics and economics portal. He is also a former gold trader and economic commentator at The Sydney Morning Herald, The Age, the ABC and Business Spectator. He is the co-author of The Great Crash of 2008 with Ross Garnaut and was the editor of the second Garnaut Climate Change Review.