Firstly, there is no such thing as ‘too much’ immunity. Beyond the regular side-effects of a vaccine, there are no known additional risks to being re-vaccinated soon after an infection.
- Laboratory Head, The Peter Doherty Institute for Infection and Immunity
With low COVID vaccination coverage in southern Africa, some have suggested global vaccine inequities may be responsible for the emergence of Omicron.
Protection from infection wanes over time. So boosters will offer extra protection and hopefully reduce the spread of the virus even further.
The infection of a Victorian aged-worker who had received their first COVID vaccine dose isn’t completely surprising. We need two doses for optimal protection.
Vaccination is likely to substantially reduce virus transmission by reducing the pool of people who become infected, and reducing virus levels in people who do get infected.
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