WHO flags Omicron risk, travel curbs tighten, Biden urges vaccination

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US President Joe Biden urged Americans not to panic and said the government was working with pharmaceutical companies to make contingency plans if new vaccines were needed. — Reuters pic Follow us on Instagram and subscribe to our Telegram channel for the latest updates. GENEVA, Nov 30 — The World Health Organisation (WHO) said yesterday the Omicron coronavirus variant carried a very high risk of infection surges, while border closures by more countries cast a shadow over an economic recovery from the two-year pandemic.Big airlines acted swiftly to protect their hubs by curbing passenger travel from southern Africa, where the new Omicron variant was first detected, fearing that a spread of the variant would trigger restrictions from other destinations beyond the immediately affected regions, industry sources said.But shares in carriers bounced back with the rest of the market ye…