As Australia's COVID-19 vaccine program gathers momentum, the prospect of getting booster shots draws closer. Here's what we know so far about when we might need to get a booster jab, and whether people need to stick with the same brand.
For the rest of us, we don’t know for sure when you will need a booster shot. You’ll read lots of different figures on this — six months, eight months, more — and that’s because the research is ongoing. We don’t yet have a definite answer to the best timing for a booster dose.
In a recent letter to The New England Journal of Medicine, published online earlier this month, doctors and public health experts at University of California San Diego said their data suggested vaccine effectiveness against any symptomatic disease may wane over time since vaccination.It may be that booster doses are particularly needed for certain groups in our community — for example, older people or frontline workers.
The European Centre for Disease Prevention and Control recently said that there is no urgent need for the administration of booster doses of vaccines to fully vaccinated individuals in the general population.There may be benefits to getting a different vaccine to the one you first got as a booster. We also know that new vaccines designed specifically to target novel variants are in development and it may be better to receive a booster of a variant-specific vaccine.
A trial is underway in the US looking at the safety and immune responses of using a different booster vaccine to the first two doses, but also includes a Beta variant vaccine. Trials are also underway of the safety and immune responses to a variety of different booster vaccines, including the next generation variant vaccines.in August: "In the context of ongoing global vaccine supply constraints, administration of booster doses will exacerbate inequities by driving up demand and consuming scarce supply while priority populations in some countries, or subnational settings, have not yet received a primary vaccination series.
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