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Articles on Covid vaccination

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Researchers found a surprising twist in a study of Omicron infection in older adults. The new information highlights the importance of COVID-19 vaccine booster shots. (Shutterstock)

COVID-19 vaccine boosters are the best defence: Older adults shouldn’t rely on previous infection for immunity

We still have much to learn about many aspects of COVID-19 — including its lingering health effects and the mechanics of its endless mutations — but we do know one thing: we can’t let our guard down.
Guo Lei/Xinhua via Getty Images

How should New Zealand manage COVID from now – limit all infections or focus on preventing severe disease?

As New Zealand emerges from its Omicron wave, increasing hybrid immunity and access to antivirals mean it’s time to shift the focus of COVID management.

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