Can Australia achieve herd immunity to coronavirus, and what happens if not? – The Guardian

Immunologists and virologists are questioning the ability of populations to ever achieve herd immunity to Covid-19.
They say gradually waning immunity to the virus after infection or vaccination, and the impact of variants, mean it is likely annual vaccinations will be required and cases will continue to occur.
Prof Miles Davenport, the program head of the Kirby Institutes infection analytics program at the University of New South Wales in Sydney, says the concept of herd immunity is that once its…

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