Covid news live: WHO advises vulnerable or unvaccinated against travel over Omicron
Covid news live: WHO advises vulnerable or unvaccinated against travel over Omicron The Guardian WHO advises people 60 or older to
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Vaccines and immunisation
Covid news live: Hong Kong to ban non-resident arrivals from Australia, Canada and parts of Europe; WHO warns Omicron poses ‘very high’ risk
Covid news live: Hong Kong to ban non-resident arrivals from Australia, Canada and parts of Europe; WHO warns Omicron poses
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