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Coronavirus: why do we need booster shots, and could mixing Covid-19 vaccines boost immune response?

The Covid-19 vaccine roll-out is now under way in Australia and around the world. It’s incredible we’ve been able to develop and produce safe and effective vaccines so quickly – but the current crop of vaccines might not protect us forever.Fortunately, researchers are already developing and testing booster shots. So what are booster shots, and when might we need them?FIRST A PRIME, THEN A BOOSTThe first time you give someone a dose of vaccine against a particular infection, it’s called a prime…

Read the original article at South China Morning Post

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