Covid live news: 40% of Israel could be infected in current wave; Germany to study rapid antigen-test reliability for Omicron

Israeli prime minister says 2 million – 4 million will be infected in coming weeks; German health minister casts doubt on rapid antigen tests in detecting Omicron

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Covid live: UK minister not ruling out ‘circuit breaker’ before Christmas; Netherlands lockdown begins

Health secretary says government keeping ‘everything under review’; shops closed and Christmas plans in disarray as lockdown comes into force

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Covid news live: Omicron found in one-third of US states but early reports on severity are ‘encouraging’, Fauci says

Variant detected in 16 US states so far; the threat appears to be less severe than Delta with signals so far ‘a bit encouraging’, Dr Anthony Fauci says

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Covid news live: New York state detects five cases of Omicron variant as new US air travel rules loom

The Omicron variant is now in five US states, including New York; US will require international air travellers to show a negative Covid test within a day of travel from Monday

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