Omicron poses 'very high' global risk, WHO warns, as new Covid variant spreads and countries close borders

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Nov 29, 2021 Omicron poses 'very high' global risk, WHO warns, as new Covid variant spreads and countries close borders The global risk of the new omicron variant is "very high," the World Health Organization said Monday, as more countries reported cases of the variant and tightened their borders despite pleas for caution and dismay from some. Read More Follow Us Get the NBC News Mobile App Check out all NBC News newsletters here. 30 Rockefeller Plaza New York, NY 10112 View in browser | Unsubscribe | Contact | Privacy