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COVID-19 vaccine: Scientists working on booster shots to protect against virus mutations – NEWS.com.au
COVID-19 vaccine: Scientists working on booster shots to protect against virus mutations

Scientists are working on booster jabs for existing vaccines after warnings the protection may not be as effective on some mutant strains.South Africa temporarily halted its rollout of the vaccine when AstraZeneca revealed on Sunday that its shot might only offer “minimal protection” against mild illness from the country’s COVID-19 variant.
But the early trial showed the vaccine did prevent serious illness and deaths from the variant, and Australia’s federal Health Minister Greg Hunt insisted he…
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