What the World Knows (and Doesn’t) About the Omicron Covid Variant

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Lisa Du

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What do we know about the new omicron variant? Follow our storythread for the latest news and analysis.

Covid-19 Testing As South African Mutation Causes Global Vaccine Worry

Since omicron first caught the world's attention in late November, the new Covid-19 variant has become a focus of interest and debate globally, having been detected in more than a dozen countries so far and triggering border closures and tightened quarantine restrictions. While scientists in southern Africa — where it was first identified — have pointed to patients experiencing only mild symptoms, the World Health Organization (WHO) has warned of potential “severe consequences.”

Omicron Variant Symptoms, Severity, Transmissibility: What We Know So Far

Since omicron first caught the world's attention in late November, the new Covid-19 variant has become a focus of interest and debate globally, having been detected in more than a dozen countries so far and triggering border closures and tightened quarantine restrictions. While scientists in southern Africa — where it was first identified — have pointed to patients experiencing only mild symptoms, the World Health Organization (WHO) has warned of potential “severe consequences.”

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