On a day when Victoria has recorded over 300 new cases, there’s some good news from the front.
There’s also the suggestion that breakthrough infections may confer superimmunity, not just against the variant that caused the breakthrough infection but against all Covid variants.
Quote:Appearing on the ABC’s 7.30 last night, Professor Sarah Gilbert said that while “there may be a first booster program … I wouldn’t expect it to happen every single year”.
“We’re going to develop long-term immunity to this virus. I think that the most vulnerable, the oldest members of society, those who are immunocompromised are going to need regular boosters,” she added.
“But for younger people, we normally see good maintenance of immune responses.”
While the Pfizer vaccine offers slightly higher protection following a second dose compared to AstraZeneca, studies have found its protection fades faster.
There’s also the suggestion that breakthrough infections may confer superimmunity, not just against the variant that caused the breakthrough infection but against all Covid variants.


