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, Department of Microbiology and Immunology, The University of Melbourne
With low COVID vaccination coverage in southern Africa, some have suggested global vaccine inequities may be responsible for the emergence of Omicron.
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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