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New Covid variant Omicron triggers global alarm

The World Health Organisation (WHO) said Omicron may spread more quickly than other Covid variants, and preliminary evidence suggested there is an increased risk of reinfection.

Epidemiologists warned travel curbs may be too late to stop Omicron from circulating globally. The new mutation was first discovered in South Africa and has since been detected in Belgium, Botswana, Israel, and Hong Kong...

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