A third booster Covid-19 vaccine dose will be essential to get high protection against symptoms from the Omicron variant and it appears likely the variant will become the dominant strain in Australia, virologists from the Kirby Institute say.
The new data from the Kirby Institute comes as Covid-19 case numbers in New South Wales jumped again on Wednesday to 1,360, 25 of them are the Omicron variant. There are now 89 Omicron cases in NSW.
The researchers also said Covid boosters may be required every six months to protect against the variant.
Virologists from the Kirby Institute presented new data on Wednesday after growing the Omicron variant in a laboratory and testing how it responded to various samples, including from the fully vaccinated, from those who had recovered from the virus but were unvaccinated, and those who had recovered from the virus and also received two vaccine doses.
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